5 Pack Furniture Legs Anti-skid Leg Cover For Pulley Chair Computer Chair Roller Holder Office Wheel Protective SleeveFeatures:Waterproof, to prevent the pulley from being stained with water, and damage high-quality silicone and felt materials, movable tables and chairs are unobstructed.It can be installed in after being put on, and it can get rid of the trouble of and without damaging and polluting the pulley wheel molding designed, fully wrapped tight to prevent falling off.Translate and adjust the position, protect and fix running.Specifications:Silicone+FeltSize: Detail Sizes in the PicturesPackage Includes:Felt Chair Caster CupsNote:Please allow 1-2cm errors due to manual measurement.Due to the difference between different monitors, the picture may not reflect the actual color of the item.