Thank you for viewing! (^^) This is a Sanwa Supply multi-lens cleaner (wet type), model CD-MDWN, made in Japan. Compatible with various models. The brush planting method is gentle on the lens, preventing stress. Can also be used for slot-in and slot-loading types. With the auto-start function, you can easily and quickly clean. Conductive fibers are used in the cleaning brush to remove dust and dirt from the lens while also removing static electricity.