The set of double wheels (including 16 wood screws 5 x 20 mm) with high-quality rubber wheels is a versatile partner with a wide range of applications. It makes beach chairs, toolboxes, or other furniture in indoor and outdoor areas mobile. This strong set has a very high load capacity and consists of 2 swivel wheels with a plate and 2 swivel wheels with a plate and total lock. The housing is made of galvanized steel sheet with double ball bearings in the swivel head. Wheels with soft treads should not be used on unsealed, absorbent surfaces such as stone, wood, or parquet. The white oil that may be present in TPE wheels due to production can leak out and cause contact discoloration. On sealed floors, this oil evaporates without residue. At high temperatures, grease from the swivel head or bearing may leak out. Please check floor compatibility before use. On softwood, cork, or similar floor coverings, all wheels may leave indentations or streaks. Material: Rubber. Beach chair wheel set with 4 apparatus wheels with rubber tires and sliding bearings, including 2 with total lock, for indoor and outdoor use. With a wide range of applications, it makes toolboxes or beach chairs mobile, suitable for both private and professional use. Universal and high-quality, housing made of galvanized steel sheet with double ball bearings in the swivel head. Makes furniture mobile and allows for 360° rotation due to double ball bearings in the swivel head. High load capacity.