This is a size 1 stress-reducing Elizabethan collar made of organic cotton (recommended for pets with skin conditions) purchased from Pompolice. I bought it thinking I might use it someday, but it remained unused and was stored at home. I would appreciate it if you understand this. Manufacturer - Size: No. 1 - Material: Organic Cotton - Design: Checkered pattern - Function: Stress reduction, bite prevention Thank you for looking.