3M Mechanical Replacement Weight PN99427 is a 14 mm wide, adhesive backed wheel weight profile designed to replace clip, flange or mechanical weights used on the exterior plane of wheels for balancing. It combines flexible and conformable material for balancing wheels with 3M Attachment Tape technology for dependable attachment. The results are an all-in-one, cut-to-size wheel balancing system designed to provide an alternative to lead wheel weightsThis product is an adhesive-backed wheel weight profile designed to replace clip, flange or mechanical weights used on the exterior plane of wheels for balancing. 3M Mechanical Replacement Weight PN99427 combines flexible and conformable material for balancing wheels with 3M Attachment Tape technology for dependable attachment.