The product center has a 2 hollow, bearing in intellect DIY placement of small goods that may have unforeseen effects, such as sparkling balls. The product has a 20 rib design, which can make the TI filter paper more well-off to stick to the filter cup wall, making it more comfortable for you to put the filter out paper. Color: clear Material: plastic Package Contents: 1 * Filter cup Only the above kit content, varied products should not included. Note: Light reflection and diverse exhibits can cause the color of the thing in the photo somewhat different from the real thing. The dimension allowed error is +/- 1-3cm.