These are popular DUSKIN sponges. Durable and long-lasting ☆ The slightly longer size allows you to clean the bottom of cups beautifully. 3-color sponge hard x 1 New and unused. This is a new soft-type sponge from DUSKIN, a popular product. The conventional nylon non-woven fabric part has been replaced with a compressed urethane layer, making it softer than the conventional type. Durable and long-lasting ☆ The slightly longer size allows you to clean the bottom of cups beautifully. 3-color sponge set soft type x 1 New and unused.