Features 1Endless Swimming Pool: The water enters the water pump from the water inlet on the side and sprays out a column of steady water through two nozzles. When swimmers face the trainer, they can swim at a fixed point. 2Improve Swimming Skill: The swimming training device can help you train swimming skills, and exercise strength and endurance. 3Water Splashing: The spray device can also be used for massage and muscle training, allowing you to play in the turbulent water with foam splashing. 4Multi Function: This countercurrent trainer is a swimming pool auxiliary device that integrates fitness, slimming and recreation, ideal for your swimming pool. 5Wide Usage: The training device is ideal for small swimming pool with limited space, very suitable for home, hotel, indoor pools, etc. Specifications Item Type: Countercurrent Jet Swim Training Device Material: Stainless Steel, Copper Installation Position: Can be installed on the concrete Bottom Diameter: Approx. 41cm/16.1in Top Diameter: Approx. 38cm/15in Thread: G2 Female Thread Use: Swimming Pool, Spa Pool Weight: Approx. 8000g/282.2oz Package List 1 x Countercurrent Jet Swim Training Device