The strainer can also act as a plug - keep water in the sink.
eBay
Sink Filter Drain Rack Stainless Steel Kitchen Sink Filter Mesh Bag Stand Waste Garbage Net Shelf Sink Corner Mesh Strainer
Aliexpress UK
Prevent the buildup of food or hair down your drains with these essential sink strainers. 2 x Big Strainers (Approx. 4 x Small Strainer (Approx. Fits most sinks, baths tubs, basins and traditional fixtures of waste drain holes. ).
eBay
4 Color Anti-Blocking Flower Silicone Kitchen Sink Strainer Bathroom Shower Drain Sink Drains Cover Sink Colander Sewer Hair
Aliexpress UK
No more blocked sink, bath or basin. Simply place in your plug hole, for example in your bath or shower and these little device will. Ideal for Bathroom Sinks and Basins along with Bath tubs and Showers.
eBay
Stainless steel kitchen sink strainer sink residue collector prevents clogging and facilitates sink cleaning
Aliexpress UK
Keep your sink clean and free from clogs with our Stainless Steel Sink Drain Strainer. Featuring a safety-enhanced design, this strainer is strong, durable, and easy to use, providing effective filtration for your kitchen sink without risking injury to your hands.
eBay
Home Colander Over the Sink Colander for Kitchen Sink Over the Sink Strainer Basket Vegetables Fruits Pasta Collapsible Colander
Aliexpress UK
1X Stainless Steel Strainer. - Fit for most drain hole. - Perfect tool to prevent drain from being trapped. Due to the light and screen setting difference, the item's colour may be slightly difference from the pictures.
eBay
1/2 PCS Multi-functional Swan Drain Basket Kitchen Sink Strainer Stainless Steel Sink Drain FilterHanging Filter Basket for Sink
Aliexpress UK
Kitchen Sink Drain Strainer: The basket embedded in the drain pipe can be pulled out to prevent the drain pipe from being accidentally blocked by hair and kitchen waste. Type:Filter Sink. Easy to Use: Fine but transparent filter effectively filters without blocking water.
eBay
LMETJMA Collapsible Colander with Extendable Handles Colander Strainer Over The Sink Vegetable Fruit Colanders Strainers JT40
Aliexpress UK
Strainer basket catches any waste material (food waste, hair etc) which is easily scooped out and removed. Kitchen Sink Waste Plug and Strainer Basket The Easy Way To Stop Plug Hole Blockages Plug hole blockages can be a nuisance.
eBay
1pc Rice Sieve Kitchen Drain Basket with Handles Rice Bowl Strainer Strainer Basket Sink Drain Kitchen Items Kitchen Accessories
Aliexpress UK
Prevent drains from clogging and unpleasant odour formation. Nice tools for you to keep your house clean and tidy. Anti-Clogging - The drain filter sink sieve has a high density of tiny holes that are evenly spaced out and act as a hair catcher while being large enough to allow water to flow from the sink rapidly.
eBay
Silicone Skimmer Spoon Non-Stick Cooking Slotted Colander Spoon Skimmer Strainer Kitchen Sink Ladle Strainer Silicone Filter
Aliexpress UK