This 40 in creeper can be converted to rolling creeper seat in seconds. The folding and dual-purpose creeper can save you money and satisfy your work needs. The folding creepers design highlights a duty structure to make sure of your safety during work.Easy to transition from a crawler to a stool for easy maintenance. The mechanical crawler allows you to easily slide under the car, and the mechanical seat allows you to work in a low position instead of hunching over.