Description Office chair constant casters, tremendous for changing rolling workplace project chairs or drafting or stools with casters into a extra stable stationary style, or changing your old, worn chair feet. These casters make your workplace chair paintings carpet for not smoothly tremendously sliding. Therefore, it is a nice gift for the elder, which can protect them from falling off. Features -Color:Black -Material:Rubber, iron -Size:6.50X4.50X4.50cm/2.55X1.77X1.77in -Made of rubber and iron, sturdy and to apply when you should stabilize chair. - Thick and shockproof backside nonslip, quiet to use, protect surface from scratching. - Converts rolling chairs with casters to stationary chairs with out wasting the chair height. - and sustainable. Suitable varied furniture, chairs, sofa, shelves, garage racks. - These are office chair casters, would be put in on many office chairs and laptop chairs. 12 x workplace chair feets