Main points:1.Halo Harness: With Halo Harness, pets with low visibility can safely detect surrounding obstacles. The device uses gentle vibrations to alert pets to avoid danger. Great for pets with eye conditions.2. Wide range of application: When the Halo Harness bumper collides with a hard surface, it can act as a cushion to protect your furry friends from head, nose and face injuries. A bumper is a versatile tool that can also help train and guide blind dogs.3. Easy to Modify Size: Increase your pet's confidence with the flexible Halo Harness bumper. Adjust the length and angle to your pet's needs for a comfortable, secure fit.4. Easy to use: The Halo harness keeps your furry friend safe while ensuring comfort. The easy-to-use buckle system and adjustable size make it suitable for all pets, regardless of size. It's lightweight and prevents breakage or tangles, giving you peace of mind.5. WATERPROOF: Halo Harness' PVC hose is wrapped in a flexible and secure fiberglass pole, providing unparalleled comfort. Its waterproof nylon fabric is wear-resistant, stain-resistant, and easy to maintain. Your pet will love its adaptable and secure fit.Specification:Material: polyester+PVC+rubbercolor: graySize: XS/S/M/L/XL/XXLweight:XS: about 75gS: about 80gM: about 84gL: about 99gXL: about 108gXXL: about 116gNotice:1. Please choose the size suitable for your pet according to the size chart to avoid the trouble of being too big or too small.2. Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.3. Please allow 1-2cm measurement deviation due to manual measurement.packing list:1 Guide Dog Safety Belt Guide