Elizabethan collars are necessary to prevent licking wounds after minor injuries or surgery. Made of plastic, so you can quickly wash it if it gets dirty. ★Size★ S Neck circumference: Approximately 17-25cm 　　Width: Approximately 11cm Sizes are approximate. Although it is new and unused, there are some minor scratches and creases that appear to have occurred during packaging or transportation. We are looking forward to your purchase if you don't mind!