We are some Japan company agent at the Hong Kong, we now inquiry the Manual type window cleaner for Japan market. Size: about 15 x 16.5 x 6cm. Main material: ABS and magnet Weight: About 220g for 1pc. Function: Easy to clean the outside surface of window from   inside room with powerful magnetic force sandwiched  the window by both sides. If your have the similar products can offer to us for the Japan market, please feel free to contact us Best regards, Sam Lau