Reflective strap; It's convenient to use car light or flashlight finding your pet in night of use: pull the buckle in the opposite side, then you can open the collar; Move the tri-glide to the side farthest from the , the perimeter can be adjusted to the maximum; The collar length will be the shortest if the tri-glide is near the Collar adjustable length range of 16 - 25 cm/ 6 - 10 inches; Width: 1 cm/ 0.39 inchesThis pet collar is cute and elegant that fit to your lovely pets.Weight: 22 gcolour: YellowMaterial: Polyester+PPPackage Contents:2 x Pet collarOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.