The Lattice Triple Rung is a training device that allows you to measure and improve your digital strength. The apparatus has a 45mm top plate, a 10mm middle ruler and a 20mm bottom ruler, the Lattice measurement standard. The Lattice Triple Rung includes the standard 20mm ruler along with instructions so you can gauge your peak finger strength during a training session and compare it to your friends who have used this rig before! This information allows Lattice to determine whether you are of a "low" or "high" digital strength level and assign you a climbing and bouldering performance grade. Lattice even offers you a completely free personalized mini-checkup!