Voimapaasi is the direct heir for the log batteries that delighted athletes. The original log battery developer has been involved in the design work. Pertti Kukkonen, a sculptor specializing in concrete, acted as an expert on concrete parts. Its appearance is more compact than its model and the devices fit perfectly in an urban environment. Voimapaasi first appeared in Töölön Eläintarha area.
Based on the feedback received from prototype testing, the device has undergone numerous small improvements in design and coloring. Users of different lengths have been taken into account in the design. Safety and vandalism have been the primary focus of the design. There is a short exercise program on the front.