Ancol Nylon Chain Check Collar is a strong nylon collar and chrome plated, welded link chain make this an ideal combination collar for most dogs. Its hardwearing and weatherproof. SizeCollar Size 1-2 to fit 25cm-35cm 10mmCollar Size 2-4 to fit 35cm-45cm 12mmCollar Size 4-7 to fit 45cm-60cm 19mmCollar Size 5-9 to fit 50cm-70cm 19mmCollar Size 7-10 to fit 55cm-75cm 25mm ColoursBlack, Red, Blue and Raspberry