Multi-purpose - The only 18-foot net that works for 36-foot tennis court height and regulation Badminton height. Adjusts to 33 inches or 60 inches in the middle, respectively, every time!; Telescoping poles - The vertical net poles raise and lower with a patented telescopic connector; Built-in Airzone - The only 18-foot net with a built-in training system. The bright yellow top band creates an Airzone up to 68 inches to help develop spin and arc; Built-in scoring system - The only net with a patented built-in scorekeeper for drilling and competition. Easy for young children to use! Package comes with 2 sets of score markers (a total of 8 pieces) in the event some pieces are lost; Tube-protected bungee - The bungee-connected middle section is protected with a plastic tube to prevent fraying and breaking!; Quick set up - The bases are designed with our patented "quick-hinge" design for super quick set-up combined with a 4-piece bungee connected middle section. No pieces to lose; Light-weight - MultiNet weighs 19 pounds (compare to the Wilson Bungee Net Systems at 13 pounds but without the MultiNet's features!); Multi-section zippered bag - Three sections make storage easier and help eliminate tangled nets