One piece molded polyethylene dollies are lightweight and easy to clean. Will not rot, warp, dent, or splinter like wood dollies. Ideal for the food service industry. Dollies with pull rope includes 1/4" poly rope handle for easy pulling. Unit comes standard with poly-on-poly casters. Roll smoothly on poly-on-poly casters. Measuring 21" x 33" with 4" x 1 1/4" Casters. Load capacity is 500 lbs.