The AntiWave Polo Start-up Set is designed for accurate water polo game starts. It includes a 3.3 foot starting system pole with quick lock, two pulleys, a starting ring, deck hole anchor, pool floor weights, and rope. All fittings are made of Marine Grade stainless steel. The basket is made from the same quality plastic used in Anti-Wave's lane discs.The system works with two pulleys which sit on the top of weights on the pool floor. A rope runs from a deck pole through the pulleys onto the starting ring which holds the ball in place. The starting ring is held in place inside the playing field by weights resting on the pool floor. At the start of play, as the swimmers approach the ball, the ring is pulled underwater and the ball released.The Start-Up Set can be fitted to either new or existing pools. It is an ideal addition to provide an efficient and accurate start to your water polo games.