TS1601A Stable structure with telescopic spring//Anti-slip//Rubber cover to protect surface//The length is adjustable as need// To use at wood workshop,car/bike garage,factory,logistic and anywhere need to carry the goods and needs to protect. Max capacity:220lbs(100kg) Min/Max Height:33-52in(84-132cm) Min/Max Length:8-7/8in—54-15/16in(22.5-138cm) Width:33-7/8in(86cm) 4x4"rubber wheel 1 set/carton box packing size:88*13.5*73cm weight:21/19kgs