trailer: 1)different colour and types. 2)plastic or steel tray. 3)heavy load and can be easy to tow. 4)good service. trailer:modelLoad capacityCastorL/W/HN.W.G.W.TC3080PL3004.00-81200/900/31037.343.3 Qingdao Xinyuyuan Industrial Products Co., LTd. is mainly produce many kinds of wheel barrows ,hand trolleys, platform hand trucks, garden carts ,sand beach cart, cement mixer, snow shovel, rubber ...