CT Natural Nylon 66 Cable Ties are manufactured with smooth rounded edges for easy handling and safe installation. The bent, rounded tips provide easier pickup, installation and pull-up. Manufactured complete in nylon 66, there are no metal parts to fall out. Their flammability rating is to UL 94 class V2 in compliance with M.I.L.requirements S-23190 R.I.Na. Approved no. 5/206/85.