Safe Material: Made of high-quality acrylic material, durable and lightweight, easy to clean. Multi Sizes: Three different sizes, suitable for various bird species. Size S fits Budgerigar, Bismarck Finch, Lovebird, Barred Parakeet, Cockatiel. Size M fits Red-breasted Parakeet, Sun Parakeet, Plum-headed Parakeet, and similar-sized parrots. Size L fits Alexandrine Parakeet, Sulphur-crested Cockatoo (medium & large), Cacatua alba, and large Macaws. Bird Recovery Collar: Helps prevent birds from feather plucking due to stress, boredom, or loneliness. Designed to stop self-harming behaviors such as biting and pulling out feathers. All Day Protection: Lightweight and comfortable design minimizes stress and allows extended wear. Helps break the lick-bite, itch-scratch cycle and prevents further irritation or injury. Wide Applications: Ideal for use during recovery from injuries, skin irritations, or after surgery. Can also be used during bathing, nail trimming, and other grooming activities. A practical accessory for bird care. Specifications: Material: Acrylic Color: Transparent Size (Approx): S: 3.5 x 4.8 cm / 1.38 x 1.89 in, Inner Diameter: 3.3 cm / 1.30 in M: 4.3 x 7.2 cm / 1.69 x 2.83 in, Inner Diameter: 3.5 cm / 1.38 in L: 5.5 x 9.5 cm / 2.17 x 3.74 in, Inner Diameter: 4.5 cm / 1.77 in Weight (Approx): S: 52 g M: 58 g L: 65 g Package Includes: 1 Piece Bird Recovery Collar (choose size S, M, or L) Note: 1. Please allow 0–1 cm variation due to manual measurement. 2. The actual color may vary slightly due to monitor display differences.