Caster Coasters protect floors and carpets from damage! Don’t let furniture legs and caster wheels leave scuffs, scrapes or indentations on your rugs or floors. Sturdy, wood-look disks distribute furniture weight evenly while shielding surfaces and carpeting. Non-slip bottom and grooved top keep beds, sofas, chairs and tables securely anchored so they don’t drag or shift. 3-1/4" diam. Set of 4.