Unior spoke wrenchthis spoke wrench is used for nipples with dimensions 33 and 345mm the plastic coated body enables a comfortable grip when tightening and unscrewing of the nipples this high quality tool is built to last and is an excellent addition to any toolbox features material special tool steel hardened and tempered surface finish chrome plated according to en12540 the key body is plastic coated buyunior workshopfrom chain reaction cycles the worlds largest online bike store