【HIGH QUALITY MATERIALS】The GYILORO clay sponge tool made of an incredibly durable and environmentally friendly material. The texture of this ceramics sponge would work great on greenware because it is very smooth. 【SPECIAL DESIGN】Each color has a different texture and application. Ceramics sponges silicone each hold different amounts of water each more porous than the other. The clay sponge are to be used during the different phases of pottery making. Blue is the most rough, orange is next and the white is the smoothest. 【COLOR DIFFRERNTIATION】Pottery tools sponge uses color to distinguish differences in similar products. The blue is thinner, very flexable, with large pores resembling a kitchen sponge in texture. The orange is a bit more rigged/firmer, with less pores, and a tad thicker body. The white has a very smooth texture with no visible pores, same thickness as the orange, similar rigidity maybe a tiny bit firmer. 【EASY TO USE】You need to soak sponge in water and take it out after soaking it. Compressed for economy of space! 【Package Content】You will receive three 3.75" x 2.25" Ceramics Sponges of different color. This is the best tool for smoothing rims and edges without raising grog. GYILORO promises 100% satisfaction to our customers, if it's incompatible with your craft projects, you can just return this Safety Stiletto, and for more question of quilting stiletto tool, we are just there for you., Weight: 0.03968320716 Pounds, Manufacturer: GYILORO