The HALTI dog collar incorporates a colorful two-tone design with a strong webbing outer and a soft yet durable easy-clean neoprene lining ensuring comfort for the dog. Reflective 3M Scotchlite strip for walking visibility in all conditions. High grade nylon webbing for strength and durability. Metal ‘D’ ring for essential name and microchip tag. X-Small Size: suitable for dogs with neck circumference between 8-12 in / 20-30 cm