Color: Grey+1 Size: 1 2/1 IN EXPANDABLE AND FLEXIBLE P-TRAP: 1-1/2 sink drain length can be expanded and contracted in the range of 9.8 inches - 24 inches (25-60cm) and 14.5 inches - 38 inches (37-100cm) VISIBLE ANTI-BACKFLOW DEVICE: Our drain kit comes with an additional anti-backflow device, translucent visual gravity drain design, automatically opens when draining and closes automatically when no water is present, effectively insulating against odors. It also comes with two 20mm diameter overflow drains, which can be connected to overflow pipes, dishwasher drains, water purifier drains, etc. WIDELY USED: sink drain pipe is suitable for 1-1/2 bathroom sink drains, kitchen sink drains, laundry room sink drains, RV sink drains, commercial use sink drains and more. Some of its components can also be used for one kitchen sink drain or garbage disposal drain. EASY TO REMOVE AND INSTALL: No need to calculate the height and angle, no need to cut and glue, use O-ring to achieve fast and tight installation without leakage, sink drain P-type storage elbow is easy to install, suitable for tight spaces, solving the problem that the sink can't be correctly aligned with the pipe. DUAL SINK DRAIN KIT ACCESSORIES LIST: both ends with flexible tubing for 1-1/2 female threads (2 pcs), one end with flexible drain tailpiece with female threads (1 pc), 1-1/2 tee fitting (1 pc), Visible Removable P-Trap Drain Valve (1 pc), spout adapter (1 pc), o-ring sealing (6 pcs)