Includes four casters per caddyFeatures exclusive non-slip Hydro-Turf centerCaddy strap kit and replacement wheels sold separatelySUPER SPORT CADDYHeavy-duty injection-molded plastic constructionIncludes three caddies with four plastic dual casters eachEach caddy measures 8" L x 7" W x 3" HSEMI-PRO CADDYTough lightweight natural aluminum constructionIncludes two caddies that measure 10" L x 7" W x 3" H and one caddy that measures 6.5" L x 6.5" W x 3" HEach caddy features four heavy-duty 23/8" casters with extra heavy-duty 2.5" plastic wheelsSUPER CADDY STRAP KITFits all Super Sport and Semi-Pro Caddy'sPrevents caddy from sliding out from under skis when used on rough surfacesComes complete with mounting hardwareSold in pairs