DURABLE MATERIAL: This goat waterer is made of quality thick plastic; durable and rustproof;AUTOMATIC DESIGN: Animals can get water automatically when they push/touch the yellow fittings, so you don't have to keep refilling the bowl and livestock can access fresh and clean water whenever they want;SAFE AND EASY TO USE: 2 holes on the back are convenient to fix this sheep waterer on the wall; polished and curved edges to ensure safety;PRODUCT SIZE: 7.9"L x 7.3"W x 6.3"H (20 x 18.5 x 16 cm); can be connected to 1/2" hose; the bowl itself can hold up to 1 liter of water; perfect for goats, sheep, cattle, piglets, etc