Joan Bicycle Chainring Sprockets Cranksets Guard Protector 44t 4 Bolts 110mm, Bike Chainstay Protector Size: 44 Teeth 4 Bolts 110mm(4.33 inch) , adjacent hole distance 110mm(4.33inch) as picture Before you order it, Please Count the teeth of your bicycle crankset ,Count the crankset holes , and measure the diameter of the adjacent holes .Any doubt , please feel free to contact us , Thanks Material:Engineering plastics Prevents chain from jumping to the outside Qty: 1 x Chain guard protector +4 bolts