KVP Vet Products Bird E-Collar, 6.25"-7.5"/12"

Bird E-Collars are great for stopping feather picking, scratching, biting, and other self-inflicted wounds. Padded neck; adjustable collar. Size Chart Item # Neck Circumference Diameter TK05610 FITS 2-2.75" 6" TK05615 FITS 2.75-3.5" 6" TK05620 FITS 3.25-3.5" 8" TK05625 FITS 3.5-4" 8" TK05630 FITS 3.5-4" 10" TK05635 FITS 4.75-5.5" 10" TK05640 FITS 4.75-5.5" 12" TK05645 FITS 6.25-7.5" 12" Review: Works perfectly - Works perfectly on my 41-year-old Moluccan Cockatoo who has some OCD plucking issues. I trimmed the collar down so she can't get to her chest where the plucking was going, but she can still easily get to her food and water and do minor feather preening. She tried but couldn't defeat the snaps, so she has given up on this. New feathers are growing back nicely. But she'll probably always have to wear the collar. Size: Just right, cut down to the perfect size. Build quality: Snaps are very strong. Review: not really meant for a bird - worked for 2 hours, my cockatoo destroyed it