Check the listing for details. Colour Filter Wide-Angle Holder for Cokin P series. Condition: New. Listed at 3.43 USD. Colour Filter Wide-Angle Holder for Cokin P series Introduction (Third Party) This extra slim holder helps to eliminate vignetting down to 20mm focal length. Can hold 1 filter (can be a polarizer) and allows the use of filters with super wide lenses (focal lengths under 20mm) 35mm format. How to use: 1. Screw the ring adapter onto your lens. 2. Slide the filter holder on the ring adapter until it snap in place. 3. Slide the filter into one of the filter holder slots which is depended by your filter's size. Note: If you need the other Cokin P series item so you can order from the below link: https://stores.ebay.com/jiakgong-DIGITAL_Filters_for-Cokin-P-series_W0QQcolZ4QQdirZQ2d1QQfsubZ16768636QQftidZ2QQtZkm Contains: Wide-Angle Filter Holder x1 (Filter,Ring Adapter not include) Suitable For Cokin P series Colour Filter