... 1,100% high tenacity polyester; 2, Elongation<7%; 3, Sewing by electronic pattern sewing machines; 1"-4" Polyester Ratchet Tie Down Ratchet tie down are used for ... the Ratchet Tie Down, Which could cause damage;4, Ratchet Tie Down must not be overload.5,Avoid twisted positioning of the Ratchet Tie Down;6,Don't tie knots ... edge protectors and sleeves for sharp edges. Good quality 1"-4" ratchet tie down