360 Rotation An 8-inch caster that can rotate 360 degrees with a brake lock and a swivel lock with two locating hole holes to fit more scaffolding frames. The top rotating shaft is equipped with high-quality steel balls to ensure smooth and durable rotation. High Quality The bracket is made of 6mm heavy duty galvanized steel. The tires are made of high-quality solid rubber with anti-slip lines on the surface to ensure the safety, reliability and durability of the wheels. Double Locking The dual locking mechanism can lock the wheel and the rotating device at the same time to ensure the safety of the user during use. Each caster can load capacity up to 1100lbs.