High Quality: Every piece of our grommet kits is made of top rubber, soft, flexible, durable and has longer service life, high temperature resistance, less affected by the negative effects of UV light and ozone, anti-aging, oil resistance, corrosion resistance, good electrical resistance, flame retardant and insulation, provide long-lasting and reliable service. Wide Range of Applications: Closed grommet are commonly used to protect or cover holes and to protect cables or wires from dust rain or sharp corners and edges, to protect against fire hazards. Use for wall hole, workshops, plumbing, wires, cable, firewall , valve, automotive, electrical appliance, etc, to fit parts together for appliances and wiring of different mechanisms. It can also effectively reduce vibration and are used to seal different important under-the-hood and body applications. Convenient Storage and Use: The separate housings of the grommets kits organize each grommets into different grooves by size, and all grooves are clearly marked for ease of use, eliminating the trouble of sorting and selecting the size. Black environmental protection double-sided protective coil inner * open 5*7 50pc Black environmental protection double-sided protective coil inner * open 7*9 40pc Black environmental protection double-sided protective coil inner * open 9*12 30pc Black environmental protection double-sided protective coil inner * open 14*16 20pc Black environmental protection double-sided protective coil inner * open 15*20 10pc Black environmental protection double-sided protective coil inner * opening: 18*22 10pc Black environmental protection double-sided protective coil inner * open 20*25 10pc Note: due to different production batches, the plastic box style is random , don't accept the specified Colour:black Material:rubber kage Contents: 170 x 7 Sizes Rubber Grommet Assortment Kit Only the above package content, other products are not included. Note: Light reflection 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.