Incredible expansion range and low weight make the Black Diamond Camalot C4 Package a perfect way to start off any trad rack or beef up an old one. These five cams size 0. 5 3 cover all the bases from fingers to fists. The new Camalots are so dialed that two half sizes were eliminated because the new increased expansion range deemed them obsolete. In addition to providing this increased range, the double axle design makes these cams full strength even when placed passively. With all these advances, Black Diamond still managed to decrease weight by 30%, because no one likes weight.