Package includes: you will receive 50 pieces bumper fender fasteners o rings, enough quantity to satisfy your daily requirements and for you to replace the old one expediently, make your car bumper fixed tighterDurable material: the black bumper fasteners washers are made of rubber material, which are not only durable but also have good elasticity, soft to touch, sturdy and not easy to fall off, safe and no peculiar smell, durable and you can use them for a long period of timeSuitable size: replacement rubber band o ring measures approx. 2.18 inches/5.55 cm in outer diameter, and 1.65 inch/4.2 cm in inner diameter, suitable size to match car bumper accessories well and for you to install it easilyEasy to carry: the quick release fasteners washers are small and light which are equipped with a paper box, easy for you to carry and store, so you don’t have to worry about losing themHow to use: you just need to install the fasteners washers on the draining oil screw, make your car bumper to be tighter and give your car engine a beautiful appearance, which will take you only a few minutes to do it, an easy way for you to use Features: Where to use: The replacement rubber band o ring is suitable for many types of cars, which can be quickly connected and disassembled, and it very suitable for front and rear bumpers, trunks, fenders, lids and more. Good effect: The universal bumper fasteners washers have a good effect to make your car bumper to be tighter and prevent the bumper from falling off, nice replacements for you to use. Specification: Material: rubber Size: 2.18 inches/5.55 cm in outside diameter and 1.65 inch/4.2 cm in inner diameter Color: black Package includes: 50 x Bumper fender fasteners o rings Warm notice: Manual measurement, please allow slight errors on size. The colors may exist slight difference due to different screen.