Some sellers are selling these individually for over $16! 

I am a little more fair. 

Specification: 

Color:Black 

Upper Diameter: 50 mm 

Bottom Diameter: 36 mm 

Height: 45 mm 

Material:Food grade plastic PP + Stainless Steel 304 


Features: 

1.Perfect Gift for Coffee Lovers. 

2.Reusable, environmental protection, saving, good filtering effect. 

3.Lower your costs, double your value and increase your personal choices. 

4.Brew your favorite coffee without any error code or modification needed. 

5.Cleans easily under running water,uniform and stable precision, easy installation. 

6.Lid with silicone O-Ring for a snug fit and plastic specifically designed to resist high temperatures. 

7.Longevity and durable,made from the best quality 18/8 stainless steel micro mesh filter to ensure premium quality design. 

8.Compatible with Keurig B31, B40, B44, B60, B50, B66, B70, B77, K45, K65, K75, K10, Breville Kcup, Mr. Coffee Kcup , CuisinartKcup.Not compatible with Keurig B30, B130, B150, B155.