White Bonded Cord; 1/2" x 700 lb. x 3,900' 2 coils/case, 66 lb. /case. Bonded cord strapping is made from high strength polyester yard fibers, and hot melt glued together. It is used with a buckle (CSSB4 click to link) and tensioner. Some glass plants hand tie to keep from scratching glass surface.