Constant force design allows for controlled dumping by one person. Inset wheels on 1/2 cu. yd. (.4 m3) and 1 cu. yd. (.8 m3) models protect walls, fixtures and patrons. Smooth surface is easy to clean and resists pitting and corroding. X-Colors (Blue, Yellow and Red) available on selected SKUs. Contact customer service for details. Optional domed lids available.