Swim Pool Hollow Noodle Hole Pool Noodle Float Swimming. ONE-PIECE (1). Foam SOLID pool noodles can help children feel more comfortable in a pool and can help them learn how to swim when they are in the pool. The main idea behind a pool noodle bulk is that it floats in water. Sure, it is fun, but they also float exceptionally well. Pool noodles are helpful when learning to swim, for floating, rescue reaching, various forms of water play, and aquatic exercise. The most common dimensions are about 160 centimetres (5 ft) in length and 7 centimetres (3 in) in diameter. FEATURES: - Environmentally friendly, non-toxic and tasteless. - SOLID Swimming Pool Noodle Foam Stick.