Black Diamond O1/O2/O3 Cartridges (4 pcs)

Optimize your binding stiffness for your tele skiing style. Cartridges include an easy-to-read tension indicator. Sold in sets of four.

FreeFlex Cartidges - An active, but soft feel. Two sizes: standard and small
MidStiff Cartidges - A stiffer system when paired with the O1 or O2, but worth it on every turn. Two sizes: standard and small
Ridiculously Stiff Cartidges - Designed for power based skiers with big boots - one size