Features: Welding clamps made from robust stainless steel, this clamp maintains its integrity and clamping force even when exposed to the intense, continuous heat from exhaust systems during and after welding. A universal for your shop. It works effectively on a wide range of materials including stainless steel, aluminized, and mild steel pipe. Specifications: Material: stainless steel Color: sliver Size: about 2", 2.5", 3", 3.5", 4" Package includes: 5 x Exhaust pipe tacking bands Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays