Make life easier when unrolling or rolling your inground pool cover. This exclusive reel system will definitely do the trick. The wheel is made of extra heavy-duty construction allowing for easy on-off application of your cover. Details: White advanced reel system 16.5" diameter The reels are for in-ground pool covers Pinch roller bearings for easy cranking Sturdy foot pad base for better handling Supports up to 4" tube kits (not included) Includes all straps and hard-wares Accommodates tube kit models 51120 51160 51200 51164 and 51204 (sold separately) Heavy duty plastic Note: reel system only - tube/pole kit is not included