The Swimline 56001 15" Commercial Adjustable Height In-Ground Reel System is part of the Commercial Solar Reel Systems of Swimline. This is manufactured with cast non-corrosive construction materials and is designed for in-ground swimming pools. It features one heavy-duty non-corrosive crank handle and locking casters with wheels to provide easy movement as well as locking system so it cannot be accidentally moved. A 16-inch cast aluminum base is also noticeable with smooth roller bearings that provide easy operation. Tilting will be resisted due to its sturdy offset design which can easily support Swimline poles including 51120 (3-inch tube), 51160 (3-inch tube), 51200 (3-inch tube), 51240 (3-inch tube), 51164 (4-inch tube), 51204 (4-inch tube), 51284 (4-inch tube) and 51205 (5-inch tube) tube kits which are sold separately. It has a white finish color and includes a quick-release pin that makes it easy to adjust its height which can be adjusted from 17 inches to 27.5 inches. All essential straps and hardware are already included upon purchase.