The offered 32 mm Composite Strap E is made of high-strength polyester yarn embedded in a polymer coating. Composite strapping can provide a variety of widths and strengths. Composite strapping is used for goods that may expand, settle or contract during transportation. 32 mm Composite Strap E is made up of strands of polyester fibers, all traveling vertically and coated together by clear polypropylene. The polypropylene coating increases its resistance to abrasion, yet still allows for slight elongation during transit.