This automatic treadle chicken feeder is built from galvanised steel for long-lasting durability. Its weight-activated feeding system allows poultry to access feed on demand, while preventing waste and deterring wild birds and rodents. Its lightweight, lift-up lid makes refilling easy. The standard size 12kg is ideal for all chicken breeds, pheasants, and flocks of up to 12 birds. Designed to be both waterproof and rust-resistant, the feeder’s automatic closing mechanism protects feed from pests and harsh weather. Size Guide & Dimensions: 12 kg: 30.5 cm L x 22.5 cm W x 50 cm H (Weight 3.7kg) Suits up to 12 chooks. 20 kg: 47 cm L x 22 cm W x 50 cm H (Weight 6.9kg) Suits up to 20 chooks. Features & Benefits Self-opening feed tray Rodent-proof. Large capacity. Galvanised steel material Rust resistant Allows chickens to feed on demand. Disclaimer: This feeder comes unassembled. However, assembly is quite simple and involves attaching a platform that chickens stand on at the bottom.