50mm Swivel Casters, 8 Pieces, Heavy Duty Rubber for Furniture, Double Bearing Swivel Head

【Durable and Flexible Ball Bearings】With double ball bearing swivel heads, these heavy-duty swivel casters can rotate up to 360 degrees and move freely. The swivel caster axle features double ball bearing swivel heads, which is superior to traditional solid bearings. Therefore, these furniture casters can be used for many years, even with frequent and commercial use. 【Sturdy and Durable】Combining the elasticity of the rubber wheels with a robust and durable metal frame, these furniture casters operate reliably. The polyurethane (PU) swivel casters won't scratch or mark floors and are safe for all floor types. 【Flexible and Quiet】These heavy-duty swivel casters can rotate 360 ​​degrees. Like a skateboard, these industrial casters move freely and smoothly, even on hard surfaces. The casters are sturdy and operate quietly. 【Wide Application】These heavy-duty casters can be used flexibly for all applications. The swivel casters are suitable for DIY projects around your home, garage, and bedroom. They are ideal for furniture, office chair casters, bed casters, coffee table casters, plant stands, shelves, toy boxes, workbenches; even for garden gate casters.