Check the listing for details. 40.5mm Empty Filter Ring and Retainer 40.5mm. Condition: New, Made in China. Listed at 20.02 USD. This KOOD 40.5mm Aluminium Filter Ring and Retaining Ring set is perfect for creating your homemade filters or replacing damaged rings on your existing filters, this accessory also doubles as a reliable spacer ring. Revitalise your photography with your own imagination, unleash your creativity, and maintain precise control over your shots with these Aluminium Filter Ring and Retaining Ring sets. House gels of all colours and have fun creating your own creative filters with this ring and retainer. Don't miss out on this valuable addition to your camera filter collection. Order now and take your photography to the next level! Our default method of sending International Mail. Is by International Standard Airmail, using the Royal Mail. This is NOT tracked. Please be aware eBay?s delivery estim.