With the Portable Triarcle Fingerboard, you can train finger strength in a controlled and safe manner, easily measured. The Triarcle is best used as a no-hang training tool, below body weight. It can be connected to several different weight sources like cable pull machines, resistance bodyweight, or weight plates. It is pre-equipped with four inset holds. Range from 1 finger to 4 finger training, this pair allows you to do open hand training.