Reliable & Sturdy Casters Set of 4: heavy duty casters are made of premium materials and rock-solid construction, featured with ball bearing and very quiet rolling, absorbs shock and vibrations.
No Brakes Design :This caster doesn't come with brake.It's Unlocked
Max Flexibility and Safety : 8T8 Swivel casters rotate 360 degrees which makes turning the mating equipment possible, is good for transporting heavy furniture.
Smooth & Quiet Roller: Thanks to double precision ball bearings which contribute to smooth mobility and low noise during movement, these swivel casters can keep smooth and silent even under heavy load. And the surface is sleek that wouldn't allow it to get stuck by hair, crumbs and grit.
Wide Applications: The 3 inch Brake casters for small equipment and small space furniture, including coffee tables, plant racks, bookshelves, shoe boxes, toy boxes, shopping carts, flower stand,blanket stand,microwave stand and any other heavy objects in the weight of 600 lbs below.

SIZE: L-shaped bracket About 1.57"(40mm)×1.3(34mm)(L×W),
Mounting Height is about 3.8"/96mm, the diameter of wheel is 3"/75mm.
Bolt Hole Size: 5mm Suit for M5 Screw
Heavy Duty Bearings - Steel structures body is extremely hard wearing and resistant to dirt.