Hiwowsport Exhaust Header Heat Wrap Locking Tie Tightening Tool+ 1/4" Stainless Steel Coated Locking Cable Zip Ties 6 Pcs High quality Stainless steel drive tension tool. Works with any 1/4 inch drive. Use on any metal tie up to 5/16inch(8mm) wide. Secures locking ties fast and get locking ties tight. Packed with one tool and 6pcs stainless steel coated ties.