All sinks are available in left or right hand orientation Metiral PVC top and full stainless steel waste set included (Belfast ceramic sink excluded) Satin finish (scratch resistant) Material: PVC + Stainless Steel How to install: 1. Place the PVC circle on the sink hole 2. Put the stainless steel case on the sink hole 3. Put another PVC circle on the plastic case 4. Connect the plastic case with the stainless steel 5. Use the crew to bind them tightly (the crew is included) 6. Put the filter What includes: Sink collection x 1 A 110/14 mm in the diameter of the drain suitable for B 83-o90 mm in the sink opening Drain with 47.5mm in thread outer diameter fits drain pipe 45.2mm in inner diameter of thread color: real gray Double layer design inside and out outside, not easy to fall off, no water seepage Umbrella design ie waterproof Lift the steel ball to filter, press the steel ball to seal the water Stainless steel/ Thickened stainless steel O.5mmSUS304 Easy installation, no need to glue and wrap raw tape There is a soft washer on the upper and lower sides of the sink, use a coin to tighten the bolt screw