Ancol Viva Adjustable Quick Fit Collar suit a broad range of dog sizes in just three sizes of product. With Ancol Viva durable poly-weave as standard, the quick-fit buckle makes these easy to put on and remove. Size 20-30cm 1-2 Small 30-50cm 2-5 Medium 45-70cm 5-9 Large Colour Black, Red, Pink, Lime, Blue Purple