For the caliper work, one pull of the pin and you're sitting up. Twenty minutes later you lean back for a quick water break. All three positions, one tool, no compromises. 3-in-1 Modes — Sit, Lie Down & Lean Back A single pull-pin converts the creeper between three distinct working positions — sitting upright for wheel work, lying flat for undercarriage access and leaning back for a comfortable rest between tasks.