Reginox Twin Double 1.5 Bowl Kitchen Sink Waste Set With Overflow 11.2cm. Includes double bowl plumbing kit Such kitchen sink strainer can filter out food, hair, and residue that can block up your drains Manufactured from High Quality Double polished stainless steel This item is easy to dismantle and reassemble Easy to clean to make sure it's sparkling shining all the time The rubber washer that sits neatly underneath the Plug creates a seal when fully pressed in to the kitchen sink so that it acts as a plug and allows you to fill up the sink with water. Specification: Diameter: 11.2cm Material: High Quality Stainless Steel SUS 304 + Brass