Durable: these bicycle crank arm boots are made of quality silicone material, which has good elasticity, not easy to wear and tear; The crank protectors are also fadeless and has good impact resistance, durable and practical, can be applied for a long timeEasy to install: bicycle crank boots are simple to use, just need to remove the pedal, then cover the crank arm by boots, and install the pedal finally, most people can easily install these parts by themselvesConventional application: the crank boot protectors can be applied to protect the carbon crank arms of your bike from scratches and dents, and prevent pedal from striking; They are suitable for most bicycle crank, useful tool for you to useGood effect: with 2 mm thickness boot covers and tensile material, these road bike gel crank boots are fit for most bikes and protect your bicycle crank arm well; Flexible feature with variety of colors beyond crank protection are also wonderful decorationscolour: as shownMaterial: SiliconeSize: 3.6x3.3x1.5cmPackage Contents:2 pairs x Black Bike Crank Boot Protector2 pairs x Red Bike Crank Boot Protector2 pairs x Blue Bike Crank Boot ProtectorOnly the above package content, other products are not included.Note: Light shooting 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.