Altra Arrows 204 Outsert Titanium. R.C.O.S.) these outserts are machined from Ti5 titanium for unmatched durability and performance. The insert secures into the arrow shaft at a depth of 0.875 inches while the titanium outsert threads directly onto the insert encapsulating the leading end of the arrow by 0.43 inches to enhance durability. Pre-installed rubber O-rings aid in locking the outsert in place reducing vibration and improving concentricity for more precise arrow setups and downrange accuracy. Available in four spine sizes and with a total weight of 75 grains when used with the 7075 aluminum insert these outserts offer optimal fit options for your arrow setup. Specifications for Altra Arrows 204 Outsert Titanium: Manufacturer: Altra Arrows Color: Black Features of Altra Arrows 204 Outsert Titanium: Machined from Ti5 titanium for unmatched durability Fits Altra Arrows 204 Shafts Secure insert depth: 0.875 inches Outsert encapsulates arrow end: 0.43 inches Pre-installed rubber O-rings reduce vibration and improve concentricity Comes in 12 pk QTY Available in four sizes: 250 300 350 & 400 spine 56gn Outsert Weight 75gn Total Weight (when used with 7075 aluminum insert) Accepts micro FMS insert weights Package Contents: Altra Arrows 204 Outsert Titanium