TruGuard, 16 Pack, 2 In 1, Multi Convertible Felt Glides, Includes 4 Pieces, 3-1/2" - 4", Round, & 3-1/2" x 6" - 4" x 6-1/2", Heavy Duty Reusable, Made With Premium Quality Felt Backed By Durable Foam For Repeated Use On Hard Surface Floors, Can Be Used I