Product Name: Delicate Grey PU Medium Duty Casters Model NO.: 25SP50PPTPE1 Bearing Type: Plain Bearing Wheel Material: PU Color: Grey Material: PU Model: 25sp50pptpe1 Trademark: carefree Transport Package: Wooden Boxes, Cartons or Plastic Bags Origin: Jiaxing Zhejiang Product Description Medium duty casters. 3", 4" and 5" an wheel provided. Color variation. Bolt or plate provided.We can manufacture the PU foamed and PU filled tires, our tires are mainly used on the hand truck, wheelbarrow, lawn mower, wheelchair and other mobility equipments. The tires are also called Carefree tires, Flat free tires, air free tires, never flat tires and puncture proof tires.