You mean my digital peephole right? This is how it looks from the front. If you want a more frontal pic with the gate let me know.    For the sponge, the pure white ones work fine.  I got these, big and small size (cubes + larger rectangles) to clean my sinks, taps, showers etc.  Then I use the melamine stick to clean my tub, WC, and glass showers. Both should work the same way! Just that the blue stick easier for bigger areas... This stick always OOS. I a