The One Arm Trainer is a suspended training tool designed to progressively load one arm by shifting the balance point of the system.It is suited for climbers who want to build toward one-arm strength without immediately requiring full bodyweight on a single arm. What this solvesTraining one-arm strength is difficult because the jump from two arms to one arm is too large for most climbers. How this solves itBy shifting the rope away from the center, more load is transferred to one arm while the other arm assists. This allows gradual progression toward one-arm loading. Why this toolUnlike fixed setups, this creates progressive unilateral loading without added weights: Adjustable load between arms Continuous progression toward one-arm strength Works with different grip attachments However, the instability from the rope reduces precision compared to fixed systems. Best forIntermediate / Advanced — for climbers working toward one-arm hangs or unilateral pulling strength. Key featuresProgressive one-arm loading via rope positionWorks with multiple grip attachmentsPortable and easy to set upNo additional weights required for progression Used withBasic handles or grip attachmentsAnchor point (pull-up bar, beam, etc.) What’s in the boxOne Arm Trainer (wood + selected holds)Rope + rope length adjuster Dimensions Material: Rubberwood Installation guide: Step 1: Basic handles assembly Step 2: Attach rope to O.A.T Step 3: Rope length adjuster installation Step 4: Hang it all up