Set of 2 colorful circular knitted sponge. - Colors: Red, Blue, Green, Yellow, Pink, Gray - Material: Knitting (yarn) - Shape: Circular - Quantity: Set of 2 These acrylic sponges are handmade by my great aunt to prevent dementia. They are approximately 11 centimeters in diameter and use slightly thick yarn, so they are thick and durable. How about using them for your year-end cleaning?