Check the listing for details. 72mm Thread DSLR Camera Lense Bahtinov Mask CAP (VERSION THREE MODEL). Condition: New. Listed at 10.34 USD. HIGH BAHTINOV FACTOR VERSION 3 . MORE BAHTINOV LINES WITH THIN LINED MASK FOR HIGH BAHTINOV FACTOR! VERSION 3 IS THE 3RD VERSION OF THIS MASK. NEW DESIGN! CHECK OUT PICTURES AND COMPARE TO VERSION 1 AND 2 MASKS. MADE FROM HIGH DEMAND FROM CUSTOMERS. 72mm Version THREE of original DSLR Bahtinov masks models. Updated mask with better focusing, no text plain front with a more loose non binding pressure spring that now fits better and not binding to mask. 72mm Thread DSLR Camera Lens Bahtinov Focus Mask VERSION 3 High Bahtinov Factor . Condition is "New". Shipped with USPS First Class. shipping through USPS 2 to 3 days when buying inside the United States. Made with black plastic on 3d printers. Made and designed by Spencer-3D. If need a size thats not posted on my sells list just message me and I will make the size you need no problem. I can design or make changes on just about anything. If need a Bahtinov mask or part ti fit your telescope or camera message me. I do more then just Bahtinov masks, I make and sell a lot of different things. I always have shipped out WITHIN 48 hours of purchase unless its an custom made part or its in a weekend or holiday. Usually %90 of items get made and shipped within 24 hours of purchase, so I pride myself on getting your project or products to you as soon as possible . Thanks....MattMY LISTINGS ARE SLOWLY GOING TO BE COVERTING INTO NO LONGER PROVIDING FREE SHIPPING. MOSTLY DUE TO COST OF MATERIALS AND SHIPPING GOING UP. AND HOW LOW MY 'ROI' HAS BEEN LAST YEAR AFTER DOING TAXES. THE FREE SHIPPING IS KELLING ME. BUT SENSE FREE SHIPPING WILL BE SLOWLY GOING AWAY I WILL BE LOWERING THE ACTUAL PRICE OF THE ITEMS SLIGHTLY TO0 HELP FOR CUSTOMERS TO STILL GET GOOD DEALS