uxcell Stainless Steel 1/2BSP Male Thread Pet Pig Nipple Drinker Waterer 5pcs Product Name : Pig Nipple Waterer;Total Size : 7x 2cm / 2.8" x 0.8"(L*D) Male Thread Size : 20mm / 1/2BSP;Rod Diameter : 8mm/0.3" Material : Stainless Steel, Plastic;Main Color : Silver Tone, Red Weight : 382g Package Content : 5 Pcs x Pig Nipple Waterer