Features: <br> <br>These casters are designed with the universal standard size stem, so you can transform any task chairs or stools that roll into modern, striking furniture. <br>Each caster is constructed of high quality PU which withstand a load up to 50kg. <br>The caster is very smooth, easy to move and roll. <br>A good replacement for your chair or other furniture which can make your life easier. <br>Convenient to use, wheels can easily be installed without tools or hardware. <br>Specification: <br>Material: PU <br>Weight: Approx.535g~1360g / 18.9oz~48oz <br>Diameter: Approx.75mm/ 3in <br>Mounting Height: Approx. 90mm/ 3.54inch <br>Load Capacity: Approx.50Kg <br>Quantity: 5Pcs <br>Type: #1,electrocoating with circlip/ #2,electrocoating with screw rod/ #3,galvanizing with circlip/ #4,PU single wheel (Optional) <br>Size:(#1,#3) Approx. 11 x 22mm/0.43 x 0.87inch <br> (#2) Approx. 8 x 17mm/0.31 x 0.67inch <br> <br>Package List: <br>5 x Casters <br> <br>Note: <br>1. Please allow slight measuring deviation due to manual measurement. <br> <br>2. Please confirm that your requirements are consistent with our product size description before ordering.<br>1、These casters are designed with the universal standard size stem, so you can transform any task chairs or stools that roll into modern, striking furniture. <br>2、Each caster is constructed of high quality PU which withstand a load up to 50kg. <br>3、The caster is very smooth, easy to move and roll. <br>4、A good replacement for your chair or other furniture which can make your life easier. <br>5、Convenient to use, wheels can easily be installed without tools or hardware.