Borosilicate Glass Single Flare Tunnel - Cobalt Blue
Borosilicate Glass Single Flare Tunnel - Cobalt Blue
4.86/5
17 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.

Another nice set of tunnels. These fit well and I would recommend them to others.
perfect for my ears and quick shipping. thanks!
My tunnels arrived sooner than expected and are good quality. I really appreciated being able to pick the wearble length because the glass plugs ive had in the past were way too long and uncomfortable. definitely will order from this seller again.
10/10 Customer service! I reached out due to my items not being delivered and they re sent my items for me!! I’m so happy with these tunnels they are exactly what I was looking for :)
Excellent beautiful milky blue gauges and quality craftsmanship! and customer service was quick and ready to help me with my order. Simply stunning!!
Exactly as described, great color and these ones are less dense then other styles. Always fantastic shipping and customer service. Now if I could only stop breaking them lol.
Don’t doubt yourself just get them they are worth it 10 times over
Beautiful high quality glass tunnels, very happy with purchase, have already ordered again. Thanks!!
Another set of excellent glass eyelets. These are very comfortable.
Late review, but the shipping was fast. The quality is great and the rings fit my jewelry perfectly.
the item got lost for a week, but the seller reassured me and the item ended up getting found! super nice and helpful!
Nice, high quality tunnels—I’ve ordered several pairs from this shop. The only thing with this pair is that I didn’t receive O-rings with it. All other pairs came with one set. Review edit: The seller got back to me quickly about the O-rings and they’re sending me some. Fast and helpful customer service.
These look great. exactly what I was looking for.
Bought the green and clear of these. Love them both.
These are perfect. I prefer stone normally, but these were too cute to pass up.
I really love the color, only reason I'm giving it 4 stars instead of five is that this peach colored pair is a bit smaller in diameter than my other pair which I bought in the same size. I can still wear them, but I have to use some o-rings on either side to keep them from slipping out
really gorgeous and arrived safely. I can't wear them yet because I unexpectedly had to downsize, but I'm very much looking forward to wearing them!
Super tiny and so cute! It’s perfect for my job that doesn’t allow facial piercings! Thank you so much!
I lost one of my rings when it slipped off my finger. I saw this product as a way to stop the ring from slipping. I ordered the largest available clear size for my pinkie and it worked perfectly. I would need a larger size for my other fingers which is not available at this time. This could be a new market for you!
This is my third order and I've never been disappointed. Always good quality and fast delivery, even to Canada.
Absolutely amazing quality love them so much
great product got three pairs