Lizard skins chainstay protectormade with neoprene and sewn with a tight stitch and heavy duty thread for extra strength and durability lizard skins chainstay guards are the original strongest and lightest protectors on the market ride with minimal chain slap when using the lizard skins chainstay protectorfeatures sharkskin neoprene offers critical frame protection dampening and a non slip texturelength 280mmcircumference fit 125 140mm large 100 125mm medium 70 100mm smallweight