Classic Hot Towel Warmer: Heats up to 180 F in about 30 minutes, no thermostat needed; highest quality insulation keeps unit from overheating Spa Towel Warmer: The extra large 23L capacity holds 24 facial-sized towels (recommend ForPro 100% Cotton Washcloths). Insulated Towel Warmer: Our towel warmers feature well insulated cabinets that stay cool even if turned on all day. Can also be used for hot packs, neck warmers and massage stones (lay on towel). See-Through Window: Features a see-through glass door so you can see how many towels are in the unit Includes a water-drip tray and two stainless steel racks that will not rust.