Check the listing for details. SIGNODE SP723 B Plastic Strapping,MachineStrapping,7/16" 3XG65. Condition: New. Listed at 202.57 USD. Plastic Strapping, Strapping Application Standard Duty, Strapping Grade Machine Strapping, Strapping Width 7/16 in, Thickness 0.023 in, Break Strength 500 lb, Overall Length 7,500 ft, Core Diameter 7 7/8 in, Core Width 7 1/2 in, Strapping Finish Smooth, Color Black Machine-grade polypropylene strapping is applied using a strapping machine and does not require seals. Strapping machines are used in moderate-to-high volume applications. Polypropylene strapping is a lightweight strap used to bundle newspapers, seal and bundle cartons, and secure light loads.Polypropylene strapping bands, sometimes called poly strapping, are a lightweight strap used to bundle newspapers, seal and bundle cartons, secure light loads, and for other light-duty applications. The embossed surface makes the strapping.