uxcell Metal Waterer Cattle Pig Nipple Drinker 1/2BSP Male Thread Silver Tone Product Name: Pig Nipple Drinker; Color: Silver Tone Material: Metal; Package Content: 1 x Pig Nipple Drinker Weight: 82g Thread Diameter: 20mm/ 1/2BSP Overall Size: 66 x 21mm/ 2.5" x 0.8"(L*Dia)