Felt Floor Cups 60mm/ 2.4 Inch Round Furniture Felt Castors Non Slip Floor Protector for Chair Legs Furniture (Beige, 8 Pieces) : Amazon.co.uk: Toys & Games
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Cups for Chair Legs - Etsy UK
Medipaq Rubber Bottomed Slip Grip Chair Leg Floor Protectors - 4 x 66mm Floor Protectors for Furniture Legs - Carpet Protector Cups / Castors - Light Wood : Amazon.co.uk: DIY & Tools