Feature: And Type:Pet MuzzleMaterial:SiliconeSize:1-5How to measure your dog Measuring your dog for a new muzzle is easy, you just need to take is the circumference of your dogs nose, around the widest part. Again once you have this measurement it is a good rule of thumb to add another half an inch, to allow for movement.Sizing is important so please make sure you measure your dog carefully, to ensure the correct size is purchased. There must be enough space inside the muzzle to allow for treating, panting and drinking.See the size chart in the picture for more details.(Please be aware that sizing does vary from dog to dog, even within the same breeds, making it imperative you get the measurements correct and just need to measure the dog mouth circumference.)Notice:Due to the different monitor and light effect,the actual color maybe a slight different from the picture color.Please allow 2-3cm differs due to manual measurement .Size:1Mouth Length(cm or in):6 or 2.4Mouth Circle(cm or in):20 or 7.9Head Circumference(cm or in):30 or 11.8-40 or 15.7Size:2Mouth Length(cm or in):7 or 2.8Mouth Circle(cm or in):23 or 9.1Head Circumference(cm or in):34 or 13.4-48 or 18.9Size:3Mouth Length(cm or in):8 or 3.1Mouth Circle(cm or in):26 or 10.2Head Circumference(cm or in):39 or 15.4-51 or 20.1Size:4Mouth Length(cm or in):9 or 3.5Mouth Circle(cm or in):28 or 11Head Circumference(cm or in):45 or 17.7-59 or 23.2Size:5Mouth Length(cm or in):10 or 3.9Mouth Circle(cm or in):33 or 13Head Circumference(cm or in):47 or 18.5-61 or 24includes:1 x Pet Muzzle Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.