Features1Using foodgrade silica gel materials, lowcarbon and environmentally friendly, nontoxic and tasteless. 2It is soft, non-slip, shock-proof, heat-resistant, oil-resistant and can be used for a long time. 3Easy to install and clean, it is not easy to age and fade, so it is very convenient for outdoor use. 4The cycling crank boot offers great protection for your bike crank, protect your cranksets from scratches and dents from pedal strikes. 5It is universal type, most cranks can be used with a wide range of applications.SpecificationItem Type: Bicycle Crank Protector Material: Food Grade Environmentally Friendly SiliconeProduct Weight: Approx. 45-48g / 1.6-1.7ozRange of Use: Most cranks can be used (universal type).Package List4 xBicycleCrankProtector