Description: Helps visually impaired or blind pet to stay safe and move freely prevents it being hit in the street. And helps to prevent painful bumps from running into walls furniture and other obstacles. Suitable for small or medium cat and dog allows your blind pets to quickly and safely become familiar with their surroundings. The pet ring is adjustable according to your pet's size easy to wear. Lightweight Blind pets collision ring does not affect daily activities such as sleep eating and so on. Anti-collision ring is made of Aluminum SBR foam material nontoxic and odorless can be used repeatedly and durable for long time use. Specification: Material: Aluminum SBR foam Color: Blue Red Size/Diameter: S M S: About 22cm Suitable or 4-10kg Pet M: About 32cm Suitable or 11-18kg Pet Package includes: 1pc x Blind Dog Harness Note: 1. Due to the light and screen difference the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.