Features Made of soft fabric and aluminum tape, comfortable for your dogs to wear. The circlip is specially designed for dogs with impaired vision, which can protect the dog from collisions with surrounding objects. Impaired vision will weaken your dog's confidence in walking, resulting in your dog's reluctance to move. Using our products allows dogs to walk with confidence and rebuild their confidence. Lightweight and easy to use, the halo is attached to the vest harness so your dog can easily carry it; And it is equipped with buckles that can prevent the dog from being released. Using this halo will not affect your dog's eating, sleeping, or daily activities. SpecificationsColor: White + Red / White + Blue (Optional) Material: Aluminum Tape + SBR Foam Size: S/M (Optional) Size Ring Diameter Recommended Weight S: 22cm / 8.66in 4-10KGM: 33cm / 12.99in 13-20KG Notice: Please allow 1-3cm (0.4-1.18in) difference due to manual measurement and slight color change for different display settings.