This soft muzzle is comfortable and adjustable with a lockable buckle. Small Soft Muzzle Product Code: DM01 Snout: 1.5 x 18 ~ 22.5 cm Neck: 25 ~ 38 cm Barcode: 6953182733881 Medium Soft Muzzle Product Code: DM02 Snout: 2 x 22.5 ~ 30 cm Neck: 30 ~ 45.5 cm Barcode: 6953182733898 Large Soft Muzzle Product Code: DM03 Snout: 2.5 x 28 ~ 38 cm Neck: 33 ~ 50 cm Barcode: 6953182733904 X-Large Soft Muzzle Product Code: DM04 Snout: 2.5 x 33 ~ 43 cm Neck: 41 ~ 66 cm Barcode: 6953182733911