Like the RollerTouch Trigger, the new HL Limb was designed specifically for the Pro Fusion and Pro Slider crossbow models. This new design borrows from the simplicity and efficiency of the 165-pound TL-4 Limb and the strength, power, and aesthetics of the 185-pound ST Limb. The result is a limb perfectly matched to the unique requirements of these two new 175-pound high performance crossbow models.