This commercial grade netting from Dynamax Sports is made from the durable No.18 Twisted Knotted Nylon netting. It is UV and weather treated to last year round indoors or outdoors. The 7/8" square mesh netting will securely catch any stray balls or balls hit with irons. Each net will be reinforced with a 1/4" rope border with a spring clip at each corner. This works great as a barrier for homes that are on or near golf courses and for practice shots with irons.