Features: brand new and high quality SAFETY: Reflective string keep high visibility in night for safety. You can easily find your furry pet in the backyard in dark MATERIALS: Dog collar is made of nylon with soft padded lining. This material is durable, quickly dries and flexible. DETACHABLE AIR TAG HOLDER: This nylon dog collar is a classical yet fashion collar that comes with a easy removeable holder case for Air Tag. A separate loop on the collar makes it easy to add leashes onto the collar. CONVENIENT: Quick release buckles, easy to adjust length and put it on/off. The plastic buckle is bent for your dogs comfort. SIZE: Small: neck size about 11.8"-14.57"; Medium: neck size about 14.57"-17.72"; Large: neck size about 16.93"-19.68"; X-Large: neck size about 18.90"-21.65". Specifications: Material: Nylon Color: Black/Orange/Red/Camouflage-Blue/Camouflage-Yellow/Camouflage-Green/Hearts-Yellow/Hearts-Green Weight (Approx.): 100g Size (Approx.): Size:S Neck Circumference:30-37cm(11.81-14.57inch) Width:2.5cm(0.98inch) Size:M Neck Circumference:37-45cm(14.57-17.72inch) Width:3.0cm(1.18inch) Size:L Neck Circumference:43-50cm(16.93-19.68inch) Width:3.0cm(1.18inch) Size:XL Neck Circumference:48-55cm(18.90-21.65inch) Width:3.0cm(1.18inch) Package Includes: 1 Piece Reflective Air Tag Dog Collar (Small/Medium/Large/X Large) note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!