Most tiring activity in LPG gas cylinder delivery was decided on the basis of ‘on-job’ heart beat reading of mathari workers and gas cylinder delivery persons. Ideation began to relieve the Gas cylinder delivery person from his physical strain.
The final concept called RISTER is a handle which can be inserted into the LPG gas cylinder ring. Handling of cylinder on ground is made easy with Rister as one may not lift or drag the cylinder. A slight twist of the wrist with the Rister, sets the cylinder in roll which can be controlled with unidirectional ratchet and pawl mechanism.