For our girls, Our Red & Pink Dog Socks are a great addition to her wardrobe! Dog Socks are appropriate for: keeping your dog's paws warm in cool weather raised tread on bottom of sock provides stability on slippery floors for in-between shoe or boot sizes, socks provide a better fit providing warmth for arthritic dogs Size Width cm/in Length cm/in Small 3 cm/1.2" 6 cm/2.4" Medium 5 cm/1.5" 7.5 cm/3" Large 7.5 cm/1.8" 9 cm/3.5" Sold in set of four socks.