Features: 1. Silicone material, soft and elastic, comfortable to wear 2. Flexible and anti-falling, no fear of falling, high elastic silica gel can effectively buffer the impact 3. The neck circumference can be adjusted to the size of the collar, without the neck, specially designed for various types of dogs 4. Increase the chance of pets being retrieved. The airbag is firmly fixed inside the collar, so it will not fall no matter how you move it. 5. The collar has a reflective design, adjustable collar, does not squeeze the neck, specially designed for medium and large dogs Specifications: Material: Silicone Color: 10 colors Size: Collar: 52cm/20.47"*2cm/0.79", protective cover shell diameter: 4cm/1.57", neck adjustment diameter: 8cm/3.15"-16cm/6.3" Package Included:1pc * the case for compatible with Apple AirTags soft silicone Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement 1. Silicone material, soft and elastic, comfortable to wear 2. Flexible and anti-falling, no fear of falling, high elastic silica gel can effectively buffer the impact 3. The neck circumference can be adjusted to the size of the collar, without the neck, specially designed for various types of dogs 4. Increase the chance of pets being retrieved. The airbag is firmly fixed inside the collar, so it will not fall no matter how you move it. 5. The collar has a reflective design, adjustable collar, does not squeeze the neck, specially designed for medium and large dogs