Chair Raising Blocks (Olton B92)

I am offering 8 chair raising blocks. They are designed to raise an armchair by around 3 inches to make it easier for elderly or disabled people to get out of. There are three recesses of various sizes to accommodate various legs and castors. The diameters of the recesses are 11⁄4 inches, 2 inches and 27⁄8 inches.