Approximately 10 x 11 cm. Please comment with the quantity needed for each of the four colors, and I will accommodate your request. These are knitted with antibacterial and odor-resistant yarn. They can be used for cleaning in the kitchen or other rooms, and also make a great gift. Due to being handmade, there may be slight variations in size. In some cases, I may knit them after receiving your order, so it may take some time to ship. Thank you for your understanding.