Buy The Best Portable Tennis Net System at an Affordable Price - Tennis Supplies and Equipment The heavy-duty system is made of steel. The square net posts follow the same specs as do the Edwards Wimbledon Square net posts. Features an internal brass winder. Can be used indoors or outdoors. Weights 310 lbs. Tennis Supplies and Equipment, we provide the best system at a reasonable price. The is a great alternative for schools, clubs, youth centers, etc. that do not have fixed tennis net posts but want to offer tennis. Specification and Features: portable tennis net www.tennissuppliesandequipment.com