Milliard Extra-Wide 19" Heavy-Duty Flexible Pool and Spa Vacuum Head with Ball Bearing Urethane Wheels Aluminum handle adapter attaches to most standard extension poles with spring-loaded locking clips. Super-durable and flexible plastic body curves to the pool floor to keep constant suction on the area being cleaned. Weights keep the vacuum head at the bottom of the pool, and free-rolling molded urethane wheels keep it from scratching or scraping delicate surfaces and provide a super smooth glide, Made from ABS plastic for durability and longevity. Cleaning surface is 19in. wide. It has a 1.5 suction port connection. Molded <span class="a-text-bold">urethane wheels</span> for an extremely smooth glide