[1200 PCS & 24 DIFFERENT SIZE]This O rings kit contains most all needed O rings size(24 sizes),from 6mm to 28mm,and 1200 pcs massive quatity.Can effectively prevent leaks in fuel or water plumbing, machinery, hydraulic, and auto repair.Better to meet your different needs in daily life and work.[WIDE APPLICATION]This nitrile rubber metric O rings works great on electronic equipment,pipes,carburator repair,tap faucets,pumps, DIY home repair,sensors,trucks,cars,boat,engines, spray guns, pressure washers,pneumatic connection,etc.Provide secure seals for any oil,gas,air,and water seal application.[EASY STORAGE]Come with a sturdy box, not easy to break.Each size of O-ring has a storage grid, which will not mess up the size to help you better storage.The convenient packaging box allows you to store it conveniently in a tool box or tool bag and take it to anywhere it is needed.[EXCELLENT QUALITY]It has good resistance to oil, water,high temperature and high pressure resistance.Operating temperature range is -40Celsius(-40Fahrenheit) to +120Celsius(+248Fahrenheit ). It has good compression, abrasion resistance and elongation.High adhesive content,fine trimming, high elasticity, no obvious chemical smell.Longer use and more durable.colour:BlackMaterial:Nitrile rubberPackage Contents:100 x O Ring 6mm x 1.5mm100 x O Ring 6.5mm x 1.5mm100 x O Ring 7mm x 1.5mm100 x O Ring 8mm x 1.5mm100 x O Ring 9mm x 1.5mm100 x O Ring 10mm x 1.5mm100 x O Ring 11mm x 1.5mm100 x O Ring 12mm x 1.5mm50 x O Ring 13mm x 1.5mm50 x O Ring 14mm x 1.5mm50 x O Ring 15mm x 1.5mm50 x O Ring 16mm x 1.5mm20 x O Ring 17mm x 2.4mm20 x O Ring 18mm x 2.4mm20 x O Ring 19mm x 2.4mm20 x O Ring 20mm x 2.4mm20 x O Ring 21mm x 2.4mm20 x O Ring 22mm x 2.4mm20 x ORing 23mm x 2.4mm20 x O Ring 24mm x 2.4mm10 x O Ring 25mm x 3.1mm10 x O Ring 26mm x 3.1mm10 x O Ring 27mm x 3.1mm10 x O Ring 28mm x 3.1mmOnly the above package content, other products are not included.Note: Light 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.