The GAMMA EZ Travel Cart 150 is a lightweight cart specifically designed for the Teaching Pro who travels between locations, and the serious player or tennis club looking for a mobile ball carrier. The EZ Travel Cart features a durable nylon ball bag that clips securely into the top of the cart, a patented cross brace support under the ball bag and durable swivel rubber wheels (two locking wheels). The EZ Travel Cart compresses and stores in its own carrying case in under 15 seconds. The EZ Travel Cart is the ultimate portable teaching cart. Capacity : 150 Balls Color : Black