Feature 1、The wheels are manufactured from white polypropylene which is put on resistant, surprise damping and makes much less noise 2、The bracket housings are made of iron plate with zinc plated at the surface for rust resistance 3、Swivel caster permits for motion in a number of directions, enable the caster to swivel 360 levels below a load 4、Universal casters can be utilized for various objective resembling on desks, chairs, small trolleys, baggage cases, etc 5、Each caster has a max. load of 10kg, and the total load potential is better to be less, for example, 30kg for 4 casters, in an effort to increase provider existence Specifications: Material: Polypropylene, zinc-plated iron Type: Swivel Wheel Diameter: 25mm / 1"Mounting Height: 35mm / 1.37" Wheel Thickness: 13mm / 0.51" Mounting Hole Diameter: 4mm / 0.15" Mounting Hole Pitch: 30 x 24mm / 1.18 x 0.94" Wheel Color: White Max. Load: 10kg every single Quantity: 4 Package Includes: four x Casters .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text desk { border-top: 1px solid #000; border-left: 1px stable #000; } .wang-edit-text table td, .wang-edit-text desk th { border-bottom: 1px stable #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text desk th { text-align: center; }