uxcell Premium Office Chair 10mm Screw Stem 1.5 Inch Dia Twin Wheel Caster 5 Pcs

Thread Diameter: M10 x 15 mm /0.39Inch x 0.59Inch(D*L)(1Inch=2.54cm). Features twin wheel design, Caster Wheel is perfect replacement for your broken one on your chair. Desinged with plastic double wheel, can protect your floor surface and reduce noise on the floor. The attached brake can stop wheel rotation with free or lock switch, easy operation. Ideal replacement for your broken caster wheel on your office chair, is easy to install with top plate.