Heyco SunBundler 12" Cable Ties for Solar Applications, 302/304 Stainless Steel vinyl clad Tin plated copper crimp sleeve for easy field installation with electrician linesmen pliers; Constructed fromCommercial Aircraft Grade Stainless Steel wire 3.88" maximum bundle diameter, black vinyl, 100 pound minimum tensile strength 12" length, .06" cable diameter, UV vinyl jacket Use standard wire cutters to both crimp the sleeve and cut the excess wire