The McAlpine BSW12 1¼" Black Plastic Slotted Basin Waste - Backnut Model: 60mm Stainless Steel Flange x 3½" Tail with Black PVC Plug is a plumbing fitting that is designed to be used as a waste outlet for basins in bathrooms or kitchens. The waste has a 1¼" diameter and is made of black plastic, which is durable and resistant to corrosion. The backnut model allows for easy installation and maintenance of the waste. The waste features a 60mm stainless steel flange, which provides a secure and stable connection to the basin. The 3½" tail is designed to fit into the waste pipe and has a slotted design that allows water to flow freely. The black PVC plug is included with the waste and is designed to prevent any unwanted materials or debris from entering the waste pipe. Overall, the McAlpine BSW12 1¼" Black Plastic Slotted Basin Waste - Backnut Model: 60mm Stainless Steel Flange x 3½" Tail with Black PVC Plug is a reliable and effective plumbing fitting that is suitable for use in a range of applications. ・ Slotted ・ Black PVC plug ・ Available with or without chain and stay ・ 1¼" BSP ・ 60mm flange