Presto Stantest manufactures Cobb Sizing tester for Sri Lanka that has been used in different packaging industries to check the water penetration strength of the materials to ensure the best quality of the products. The device is fabricated with the high quality of raw material such as stainless steel and mild steel. The operating procedure of the appliance is very simple, and it can be operated with a single handed operation. One hand roller is provided along with the device that helps to drain out extra water out of the sample after the test. The instrument is designed in compliance with national and international standards that are introduced by various standardization authorities. The machine is delivered to the customers complete with the instruction manual that helps to operate the device completely.