... 3.several colors. 4.light weight,acid and base resistant 2)6inch:6"x2"3)7inch: ... characteristics as below: light weight, good elasticity, and no puncher. These tires are used for hand ... carriers, bicycles, wheel chairs, golf trucks, carriage trucks and others. Qingdao Sainuoke Industry & Trade Co., Ltd. ... characteristics as below: light weight, good elasticity, and no puncher. These tires are used for hand ...