The Max Pro+ is a four finger thumb trigger release equipped with our Fully-independent Standard Caliper Jaws, designed for stealth. The Max Pro+ acts as a great gateway into the T.R.U. Ball family of handle releases. Fully-independent Standard Caliper Jaws: Pull the trigger to open, let-up to close. Easy as that. The fully-independent jaws close to load silently and allow the d-loop to release evenly through the jaws as they open, resulting in lower torque. Every set of jaws are professionally tested before being packaged to make sure you get the best from the best.