Details about the Hardwood Dolly The hard wood dollies utilize select kin-dried northern hardwoods to prevent warping and shrinkage.All dolly boards aare cut,planned and moled to 7/8"with specialized machinery that guarantees consistent quality.Environmentally friendly wood sealant and countersunk boltholes provides a smooth working surface.The 3” caster incorporated polylefin wheels that have a higher impact resitence than hard rubber.they are non-marking,resistent to most chemicals,and will withstand temperatures from -20° F to +230° F.All dollies are supplied with four ball-bearing swivel casters with 3”polylefin ,plain bearing wheels.Dollies can be supplied with swivel /rigid caster combinations.Special sizes,styles and capacities are available upon requests.