1. If a pet with unclear vision is walking in front of an obstacle, the anti-collision ring will feed back to the pet when it encounters the obstacle, so as to avoid accidental injuries caused by the collision of the pet 2. Both collar and bust size can be adjusted 3. Material: aluminum strip + SBR + foam 4. Reference weight: S: 4-10kg, M: 11-18kg 5. Size: S: circle diameter 22cm, M: circle diameter 33cm 6. Weight: S: 300, M: 400g
