This set of 4 50mm twin wheel plastic furniture castors features a grey colour and a 5mmx15 threaded design. With a capacity of 50kg per caster, these castors are perfect for moving heavy furniture or equipment with ease. The 50mm size ensures stability and smooth mobility, making them ideal for DIY projects or workshop use. Upgrade your furniture dolly or cart with this new set of high-quality castors for added convenience and versatility.