Quickun 3/8" Hose Barb Fitting Equal Barbed Y Shaped 3 Way Plastic Joint Splicer Mender Adapter Union for Air Line Tubing Pipe (Pack of 4) 3/8"(4Pcs) hidden Breathable and water-resistant: The wave-shaped

Breathable and water-resistant: The wave-shaped acrylic adhesive ensures that the skin can breathe and move freely

The material is gentle to the foot

2) Effectively detect the o2 content in the exhaust gas

In the mouth or under the tongue Do not hold or chew it (if you consume it in this way

Quickun 3/8" Hose Barb Fitting Equal Barbed Y Shaped 3 Way Plastic Joint Splicer Mender Adapter Union for Air Line Tubing Pipe (Pack of 4) 3/8"(4Pcs) hidden Breathable and water-resistant: The wave-shapedQuickun 3 8" Hose Barb Fitting Equal Barbed Y Shaped 3 Way Plastic Joint Splicer Mender Adapter Union for Air Line Tubing Pipe (Pack of 4) Product Features 100% new and high quality material. Can be connected with 3 8" Hose ID Can be easily connected with tubing hose line. Smooth surface and inner wall, durable Light and Small. Exquisite craftsman makes it safe and reliable. Wide range of use: Suitable for applications in pharmaceutical,fooand