Stainless Steel
Fits Most Kitchen Sinks, Bathroom Sinks, Shower Drains, most tubs, etc..
They Can Also be Used to Clean Small Parts??Keep food, hair, and other small items out of your drain

Large: 4.5'' outer diameter; 2.25'' inner diameter; 1.7'' deep

Medium: 2.75'' outer diameter; 1.125'' inner diameter; .75'' deep

Small (x2): 2.25'' outer diameter; .875'' inner diameter; .75'' deep