Borosilicate Glass Single Flare Tunnel - Cobalt Blue
Borosilicate Glass Single Flare Tunnel - Cobalt Blue
4.86/5
18 in stock
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Add a bold and vibrant touch to your jewelry collection with our Cobalt Blue Borosilicate Glass Single Flare Tunnels, sold in pairs. These beautifully handcrafted tunnels are made in the USA from durable, high-quality borosilicate glass, ensuring a comfortable and lightweight fit for stretched ears.
The deep cobalt blue color exudes sophistication, while the polished glass surface enhances its sleek and modern appeal. Featuring a single flare design, these tunnels offer easy insertion and come with a removable O-ring for a secure hold, making them perfect for both new and experienced stretchers.
Features:
- Premium Borosilicate Glass: Strong, lightweight, and smooth
- Vibrant Cobalt Blue Hue: A bold and striking color for any look
- Single Flare with O-Ring: Easy to wear and secure fit
- Handcrafted in the USA: Superior quality and craftsmanship
- Comfortable for Daily Wear: Lightweight for all-day use
- Sold in Pairs: Perfectly matched for a cohesive style
Upgrade your stretched ear jewelry with these Cobalt Blue Borosilicate Glass Single Flare Tunnels, designed for those who love unique, high-quality body jewelry with a standout aesthetic.
Materials
Materials
When compared to regular glass, borosilicate is safe for initial piercing, resistant to chemicals, scratch- resistant, less susceptible to fractures, resistant to thermal shock, and not poured into molds. All our glass jewelry is handcrafted in St. Louis, Missouri.
Care Instructions
Care Instructions
MM Glassworks strictly uses borosilicate glass that is hand made in the USA. Borosilicate Glass is scratch resistant but still fragile and should be treated as such. All glass is guaranteed to arrive scratch and breakage free. We will package each order in a foam insulated box free of charge. Borosilicate glass is autoclavable. Do not use harsh chemicals on any jewelry. Do not wear in the shower or while swimming. Wash with antibacterial soap, but take caution while removing; glass will break if dropped on tile or cement.
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If there is a perfect cobalt blue, this is perfect cobalt blue!
Some of the best glass tunnels around. Do wish they were available in double flaired.
Fantastic color and quality. Arrived really quick. Love them.
This is my second pair. I started with the clear. Love these.
I got a 8g and it was smaller than expected and slipped out. They don’t do exchanges so be careful.
One of the items from my order was incorrect but the seller corrected the issue and sent me the right size I ordered. Love these because metal irritates my skin. Super easy to clean! Thank you! Would order from again!
Great craftsmanship I really love them
I frequently buy from this shop and am always happy with the quality and customer service!
They're very comfortable and love the flash of dark blue when I move my head.
Very pretty! fits well, love the blue color
Great as always, I have about 13 pairs from this shop.
Really nice quality! Very comfortable to wear too!
Nice quality, exactly what I expected.
Shipped in only a few days. They’re beautiful.
These two tunnels had different inner widths, also the one that had the smaller inner width was too small for my ear. Love this shop but this made me sad. UPDATE: Nice seller of the shop corrected this issue for me!!!!
I love their jewelry. Very reasonable prices and made well. Arrives quickly. Thank you so much!
Never disappointed! I have so many pairs from this shop.

These arrived super fast, and are very well made! Thank you so much! I love them!
Adorable! :) I love them so much
These glass plugs are exactly what I was looking for as I prefer single-flare jewelry. I will definitely be back to buy more as I continue stretching.
They are perfect .. seller worked with me every day to make my purchase perfect. I've already made a review .but I will every purchase
awesome quality jewelry once again
I have purchased these before and reordered because I lost one. Love these! As described and great quality!
Second purchaae from this seller. Always fast shipping. I decided to give the double flare a try after living the single flare I ordered last time. My long hair often got caught and pulled the o-rings off the single flare. I LOVE that these came in a 1/4" wearable length. They fit my ears perfect and I didn't have to search the bed this morning for a missing one. I really think so far these are the better option & will cause me way less problems than the other. I was originally dettered of the double flare bc I''ve had to fight with previous materials & hurt my ear getting them in. These slid right in so easily given the smooth material. I really hope the seller offers other styles in the 1/4" in the future as I would purchase the amber and striped B&W. Heck I may even go up a size bc of how comfy they are in my 2nd holes.
Repeat purchase becase I lose these often and the price is really good for me to keep extras on hand.
They look amazing and I couldn’t be happier :)
A+ Seller. Fast Shipping. Thank you!
Asked a question and got a response within the hour! These are so comfy, way more comfy than my metal tunnels. They also look beautiful!
its good quality its a nice sturdy glass only thing is I am new and I cant fit it in ! I got a 2 1/4 - I think I still need to work with earrings with a taper
Beautiful tunnels, very friendly and helpful customer service as always. Quick delivery to the UK too. Thank you!
Hadn't planned to get to 00, but here I am :)
While I have only used silicone tunnels in the past, these glass tunnels worked perfectly. They arrived on time, matched my size, and went in with ease. This was a great option for upgrading my jewelry.
These tunnels are beautiful! They arrived incredibly quickly, too…around 3 days after I ordered them! It’ll be a while before I move to the next size up, so I figured I’d treat myself to some nicer jewelry 👍
safely packaged and arrived on time! Thank you
Super nice glass tunnels, fast shipping, very satisfied, will certainly order again. Thank you
They're perfect. What more can you say? My favorite double flares.
They're perfect. What more can you say? My favorite double flares.
Very nice plugs. Very fast shipping.. seller communications are top notch.
Had to send them back but very nice seller very helpful and they were very fast responding
Never disappointed with an order, I could not be happier!