Master Equipment Plastic Pet Grooming Stool Caster, 5-Pack, Black Fit contoured grooming stools, deluxe grooming stools and ergonomic grooming stools, sold separately These sturdy, long-lasting, smooth-rolling casters provide effortless mobility and do not collect dog hair Available in pack of 5 casters Measures 5-1/2-inch length by 3-2/7-inch width by 3-inch height