Collonil Mini Polish Silicone Sponge - Neutral When all you need is a little shine between full polishes, the Mini-Polish Sponge is a perfect solution. Use on any smooth or patent leather, and know it is appropriate for synthetic materials as well. Toss this convenient pocket-sized sponge with its secure case into your dopp kit, purse or bag to have a quick shine anytime. Made in Germany.