Check the listing for details. Bahtinov Mask SVBONY SV48 95mm I.D. Condition: New. Listed at 10.79 USD. Fits an outer diameter scope or telescope of 95mm . Has a 95mm I.d on bahtinov. Bahtinov Focus Mask for Telescope - SVBONY SV48. or fits any 94 or 94.5mm OUTER diameter . Bahtinov Mask .. SLIDE ON fits OVER END ON OUTER diameter. Condition is New. Shipped with USPS First Class. Software Designed and tested. Works great with these and similar models. 3d printed and designed by Spencer 3d. As always fast USPS SHIPPING. 2 TO 3 DAY SHIPPING. Black color, available also in black or any other color just let me know. If need in different color let me know or if need one to fit your telescope let me know I may already have a design, if not i can design to fit yours. May fit others same size or other brands. SHIPPING CHARGES ARE CHANGING, SO MOST ITEMS THAT WAS FRRE SHIPPING WILL BE CHANGING OVER TO CHARGED SHIPPING TO THE BUYER. THIS WILL BE GOING INTO EFFECT SLOWLY LISTING BY LISTING. BUT THIS ALSO WILL MEAN REGULAR PRICES WILL GO DOWN SOME, AND THIS WILL MEAN BETTER SHIPPING OPTIONS, MORE SHIPPING OPTIONS, FASTER SHIPPING, AND MORE INTERNATIONAL SHIPPING OIPTIONS WILL NOW BE AVAILABLE.