Material: made of quality plastic, high pressure resistance, can withstand strong pressure without tripping out, great for long term use, push to connect fittings type: 3/8 inch, fit for 10 mm OD tubeEasy to use: simple push in design for connecting to the tube and provide secure connection, requires no extra sealingConvenience: quick connect fittings easy to install, flexible and space-saving, 360-degree rotate, release rings adopt ellipse design, which can be removed conveniently, no extra sealing needed, just need a simple push, provide secure connectionApplication: it is widely applied in industries automatic production equipment like machinery, electronics, automobile, packagingQuantity: package includes 40 pieces fittings, 10pcs for 1/4 inch fittings, 10pcs for 5/16 inch fittings, 10pcs for 3/8 inch fittings, 10pcs for 1/2 inch fittings, meet your requirement for various purposesOuter diameter about: 6mm, 8mm, 10mm, 12mmMaterial:plasticcolour:BlackPackage Contents:40 x Straight Push ConnectorsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.