I've tried various cleaners, but I think this one has the best balance of cleaning power, cost performance, and time efficiency! I've been using it for about 5 years, and thanks to it, my sneakers are always sparkling ✨ more than anyone else's ✨. It's a pack of 12 sheets x 4. Sheet size is 15cm x 20cm. ① Remove dust and dirt from the surface of the sneakers with a brush. ② Wipe the surface of the sneakers → soles with one sheet, lathering as you go. I recommend using one sheet per shoe. ③ Remove any pebbles stuck in the soles. ④ Lightly rinse the soles with water to remove the foamy residue, and then wipe off the moisture with a rag.