This is an "Elizabethan Collar for Dogs, Soft Mesh, Lightweight, Breathable, Medium to Large Dogs, Prevents Licking, XL, 47cm-53cm, Adjustable." It is used to protect wounds and supports smooth recovery without stress. It has a cushion part that gently wraps around the face and can be finely adjusted with Velcro. The mesh material is breathable, making it comfortable for your dog. Color: Outer blue, Inner green Size: XL Neck circumference: approx. 47cm - approx. 53cm For medium to large dogs *Please refer to the reference images for details. Please allow for slight errors.