【SUPERIOR HOLDING POWER】 The Heavy-Duty Closed (Push Type) Seals for Steel Strapping, 1/2 inch wide. Pack of 100 seals. Closed banding seals keep the steel strapping in line when applying tension 【INTENDED FOR EXTRA-HEAVYWEIGHT LOADS】 Steel strapping has superior break strength and is intended for extra-heavyweight load applications such as banding together pallets, stones, spools, brick, foam blocks, roofing materials, etc. 【WORK ON IRREGULAR SURFACES】 Closed metal seals are used on irregular surfaces as well as rounded objects. Push-type seals have an overlapping design and must be threaded before applying tension with the strapping tensioner 【GALVANIZED RUST-RESISTANT COATING】 Galvanized rust-resistant coating provides great corrosion resistance. So, our metal seals retain their firm grip, without strap slippage and loss of tension. Provide long-lasting fastening in harsh environments 【THE BEST FIT】 Steel strapping seals (also called banding clips) work with strapping sealers/crimpers of any brand. These are part of the IDL Packaging Strapping Kit, which has everything you need to start the strapping process