DescriptionMade of Silca gel.Perfect for Mountain bike, folding bike, road bike, etc.Allow quickly, easily and frequently removal.High temperature, weather and oil resistance, more durable than same products.Feature-Color: As Shown. - Material: Silica gel. - Size: 3.6 x 0.19 x 3.6cm. - Made of silicone material,lightweight and durable. - Waterproof and oil-resistant, corrosion-resistant. - Ultra-light, both functional role, can be used as decorations. - Through the height of the itinerary can be accurately measured fork maximum stroke. - Suitable for all 30mm front fork tube use.