Laundry business is popular service business in Indonesia that mostly involve muscle activity for lifting and ironing activity. It causes the worker get muscular fatigue and injury especially for ironing activity that is included in the static and monotonous activity. moreover. existed ironing board design in the market is not easy to be adjusted to standing or sitting position of wor... https://www.nacrack.com/quick-grab-Chainsaw-File-super-grab/