The Altra-2 is virtually the lightest, most vibration-free premium 2-piece quiver on the market. Mounting to the top and bottom mounting holes of your riser, the Altra-2 keeps your sight and rest areas free from clutter. The adjustability allows for extremely tight-to-riser mounting allowing for virtually zero balance issues. The top mounting bracket adjusts vertically 4″ and the bottom mountain bracket adjusts vertically 6″ giving you a total of 10″ of vertical adjustability to truly customize the fit and feel you’re looking for. Light weight at just 9.6oz.