First of all, this is just the absolute cutest! It works great - just put your sponge in & you're ready to go. It's made of really flexible material, so you can fit it & pack it anywhere. It has vents/holes in it so your damp sponge won't get moldy. The included sponge stand is also useful so you can keep your sponges from rolling away from you. It flattens down for travel & take up almost zero space. I love this so much!