Joan Bicycle Chainring Sprockets Cranksets Guard Protector 48t 5 Bolts 95mm, Bike Chainstay Protector Size:48T 5 bolts 95mm( 3.74 inch ) , adjacent hole distance 95mm(3.74 inch ) 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 +5 bolts