Neck Size Width 11 - 14 in (28 - 36 cm) 0.75 in (20 mm) 14 - 20 in (36 - 51 cm) 1 in (25 mm) 20 - 26 in (51 - 66 cm) 1 in (25 mm) The Flat Out Collar is our everyday dog collar with an easy-to-use side-release buckle and outdoor-inspired patterns that connect you with your favorite wild spaces. It\'s packed full of Ruffwear\'s essential collar features: separate ID tag attachment point with tag silencer, strong and comfortable webbing, and an aluminum V-ring leash connection point. ADDITIONAL FEATURES Tubelok Webbing is colorfast and long-wearing Easy-to-use side-release buckle Aluminum V-ring provides a secure leash attachment point Easily add or remove tags with Quick Ring Separate ID attachment point Silicone tag silencer MATERIALS Webbing:100% polyester Tubelok Webbing Leash Connection Point: Anodized 6061-T6 aluminum V-ring Buckle: ITW Nexus Airloc side-release buckle Other: Silicone tag silencer Made in Vietnam