All sinks available in left or right orientation Material: PVC top and stainless steel Complete waste kit included (ceramic Belfast sink excluded) Satin finish (anti-scratch) Material: PVC + stainless steel How to install: 1. Place the PVC ring on the sink hole 2. Place the stainless steel case on the sink hole 3. Place another PVC ring on the plastic case 4. Connect the plastic case with the stainless steel 5. Use the screw to secure them tightly (screw included) 6. Insert the filter What's included: Sink assembly x 1 Drain with 110/14mm diameter suitable for sink opening of 83–90mm Drain with 47.5mm outer thread diameter fits drain pipe with 45.2mm inner thread diameter Color: gray Double-layer design, inner and outer layers, not easy to detach, no water seepage Waterproof umbrella design Lift the steel ball to filter, press the steel ball to seal Stainless steel construction Featuring 0.5mm SUS304 thickened stainless steel Easy installation, no glue or Teflon tape required Soft washers on upper and lower sides of sink, use a coin to tighten the bolt screw