If you purchase 2 or more sets, I will change the shipping to Mercari delivery. This is a set of 8 eco-friendly scrubbers, hand-knitted with antibacterial and deodorizing acrylic yarn! Each acrylic scrubber is approximately 8-9cm in diameter and about 3mm thick. (As these are handmade, there may be slight variations.) For dishes and pots with oil stains, using a sponge and detergent will honestly get them cleaner, but f(^^; for dishes without oil stains, tea stains, coffee rings, etc., they can be cleaned with just water. For cleaning the bathroom, I alternate between using detergent and not using detergent for cleaning the bathtub. This reduces the amount of detergent I use while maintaining cleanliness. On days without detergent, the dirt comes off better if you wash immediately after running hot water. You can hang it in the washbasin and quickly clean with the water you're waiting for to wash your face. Washing the washbasin with detergent about once a week will help maintain cleanliness♪ To care for the eco-friendly scrubbers, if you don't mind, you can put them in a net and wash them in the washing machine, then hang them to dry, and they will last longer(*´∇｀*) When they get worn out, use them for cleaning the sink, screen doors, and window sashes! The satisfaction of using them up(*´ω｀*) Please let me know if you are purchasing multiple sets, and I will offer a small discount for combined shipping.