Material:Plastic Material of Sink Strainer : Environmentally friendly plastics for bottom + Soft TPR resin flower shape edge,weight: 30 g/pcs,set of 4. Size: overall diameter: 4.5 inches, inner filter: 3 inches,depth:1.37 inches; Suitable for drain diameter range 3-4 inches, fits for most kitchen sink drains. 2.5mm dia petal holes can effectively catch food particles debris without blocking water drainage. Easy to cleanStain-resistant,plastic material does not stick with food residue,easy to clean Package includes: 4 Colors Silicone Sink Strainers. Bright colors adorn your kitchen 30g weight, stable ,will not slip around the drain. It can well stay anchored to the drain,even though you pour a large amount of water into the sink. TPR resin material,non staining oil stains,easy wash with warm soapy water to keep color over time. Anti-clogged 2.5mm dia petal holes. Efficient anti-clogging shield lets water flow seamlessly into the drain while debris catch, effectively stopper to vegetables,food particles and other kitchen debris, trash go to drain pipe. Easy to pull out and tap into the trash if it gets larger chunks in it. They're much easier to keep clean than those metal ones with the rubber gasket on the bottom.