Check the listing for details. YELLOW Empty Chamber/Safe Chamber Flags Rifle Pistol Range Safety - ORANGE. Condition: New. Listed at 12.50 USD. You are buying one package of quantity 4 Chamber Safe Flags in Orange or Yellow. These SUPER HIGH Quality Chamber Flags are used to visually show that a Weapon is SAFE at a glance. Also known as Open Bolt Indicator (OBI) or Empty Chamber Indicator (ECI), the brightly colored flag obstructs the firing chamber and alerts the range officer and other shooters that the fire arm chamber is empty! These are NOT 3D Printed flags that will break upon minimal impact. These items will work in most (.22 caliber - 12 gauge) pistols and rifles. The shaft is 4" for the Large Bore and 2" for the Small Bore/Rimfire. Please order the rimfire for your .22 or .17HMR inventory. Don't look any further! We have robots combing the internet constantly. Our prices are the lowest anywhere! Shipment via USPS First Class mail service. Feedback From Buyer Date/time Great seller!! Fast response. Would buy from this seller again!!!n*****9( 351) 2019-04-16 20:29:39 Great seller!! Fast response. Would buy from this seller again!!!n*****9( 351) 2019-04-16 20:26:16 Fast shipping! Great Seller!k*********w( 177) 2019-02-03 01:53:34 Fast Delivery and Excellent quality on the chamber flagsj******y( 180) 2019-01-15 03:01:59 nicel********e( 306) 2018-11-28 00:14:51 nicel********e( 306) 2018-11-28 00:14:26 Smooth transaction, received my purchase as explained to me in a separate emailp******i( 161) 2018-08-07 22:21:55