The NetScan comes packaged in a green velvet pouch that fits nicely into any tennis bag. It's handy to have courtside when the height of the net comes into question and can be used by men and women alike.
The NetScan devise has a clip on the top of the racquet that can be attached to the top of the net. The chain with tennis ball on the end is then dropped. The ball should just touch the court when the net is the correct height. A clever and useful device.