GLI Pool Products Economy Above Ground Pool Solar Cover Reel - 12-18 Feet Wide Designed for above ground pools 12-18 feet wide Features a single hand crank at one end and a permanently mounted base at the other Crank and base are made of strong corrosion-proof resin with interlocking aluminum tubes Base mounts to any top rail 6 inches or wider Reel pivots out of the way for swimming and can be removed entirely for easy winter storage