uxcell Pig Swine Nipple Automatic Waterer 20mm 1/2 PT Thread 3pcs Silver Tone Product Name : Pig Nipple Waterer;Total Size : 6.3 x 2cm / 2.8" x 0.82"(L*D) Thread Size : 20mm / 1/2PT;Material : Metal Main Color : Silver Tone Weight : 221g Package Content : 3 Pcs x Pig Nipple Waterer