Smooth, rounded edges do not cut insulation - or hands - and are comfortable to work with. No metal parts; head and pawl are integrally molded for added strenght and durability. Bent tip on all RTID series cable ties allows easier pick-up, insertion and pull-up. Closely spaced positive - locking teeth permit fine adjusment to tie all sizes of bundles. ID plate perpendicular to bundle and insede head.