WinnWell's Heavy Duty Targets are constructed using PVC reinforced polyester. The stainless steel grommets and rugged bungee cords help affix this target to a wide range of nets. Heavy duty 1800D Polyester construction reinforced with PVC backing Bungee cords with stainless and steel grommets for quick set-up Weighted bottom ensures target holds shape 5 hole design for optimal practice WinnWell 52in. Heavy Duty Shooting Target MS1365934 MS1365934 676824022476