ABS&PP body drain fit sink with overflow and sink without overflow Dimensions: Overall length from the top of pop up cap to the end of tailpiece: 8.82". Diameter at Top: 2.2". Diameter at tailpiece connection: 1.24". Easy operation: Press the cover to seal and press again to open. You can turn the upper cap counter-clockwise to unscrew and remove. Easy to install: All required gaskets, seals and mounting nut are included. Please make sure the gaskets are in the right position (please refer to product pictures or instructions) to avoid leakage. Standard drain opening: Fits standard US bathroom sink with 1.65-1.97 inch drain hole.please check the size of the sink hole before purchasing. Please contact us if you have any problems or suggestions visa Amazon,you will get reply in 24 hours.