WELLGO Bed Stoppers & Furniture Cups 4 Pack - Premium Silicone Casters Furniture Wheel Stoppers fit All Wheels of Furniture, Sofa Bed Chairs-Made up of Solid Silicone Prevents Scratches (4Pcs Black) -
Furniture Wheel Stopper Bed Stopper Caster Cup,Suitable for All Kinds of Furniture on Wheels,5 Fixing Pads,Fixed Standing castors for Wood Floor/Carpet - Amazon.com
RRJMB200 | Swivel Casters with Heavy-Duty MC Nylon Wheel Stoppers (RRJMB) | Yodono | MISUMI