Want to bring your lens on a dive, but don't want to use it all the time? You don't trust putting the lens in your BC Pocket or collection bag, if this is a problem for you than you need this lens holder. Fantasea's Eye-Grabber is designed to securing your 55mm accessory lens and filters when they are not in use. Don't dive without your Eye-Grabber. The Eye-Grabber F55 attaches to your Flex or B&J Arms. The base is manufactured from corrosion proof Polycarbonate plastic with the treaded section constructed from (POM) PolyOxyMethylene a form of Delrin for durability and long life and coupled together with (304) stainless steel screws this lens caddy is lightweight 4.23 oz (120g) and adds versatility to your underwater photography system. Eye-Grabber allows you to safely secure any 55mm threaded accessory making them handy. Eye-Grabber is easy to attach to your camera system with the included T2 Connector. Compatible with: Less ThanulGreater ThanLess ThanliGreater Than Red Eye Filter M55 (SKU: FNT5207) Less Than/liGreater ThanLess ThanliGreater Than Big Eye Lens M67 (SKU: FNT5137) with the Eye-Daptor F67-M55 (Cat. No. 4721) Less Than/liGreater ThanLess ThanliGreater Than Sharp Eye Lens M67 (SKU: FNT5128) with the Eye-Daptor F67-M55 (Cat. No. 4721) Less Than/liGreater ThanLess ThanliGreater Than Any other accessory lens with a 55mm thread or a 55mm threaded adaptor Less Than/liGreater ThanLess Than/ulGreater Than