Features 1.Main Function: Mainly used to lubricate the front fork to prevent the front fork from wearing and increase the service life. 2.Sponge Material: Using high quality sponge material, the ring has high density and more tear resistance. 3.Easy to Install: The installation is very convenient. It is recommended to replace the sponge ring every time the front fork is replaced. 4.High Performance: Fully foaming, full air chamber for good oil absorption and oil storage effect. 5.Perfect Accessories: Great accessories to Protect the front fork of your Bicycle, and the size of the sponge is determined by the outer diameter of the inner tube of your fork. Specification Item Type: Front Fork Sponge Ring Material: Sponge + Silicone Product Color: As Pictures Shown Product Weight: Approx. 3g / 0.1oz Package List 2 x Foam Ring 1 x Seal Ring