This semi automatic strapping machine will tense the strap and join the ends with a secure heat weld so your content can be secure. This item consists of easy access for reloading strapping. The strap goes into the machine the motor automatically turns back on. The strap tension can range from 11 to 140 pounds. Consists of a strapping core size width of 8" X 8" or 9" X 8". Note the polypropylene strap that comes with this is yellow as shown, has a strapping width of 3/8", contains 12,900 feet per role, and has a core size of 9" X 8". If you like our portable strapping machine, you may also be interested in our mobile pallet strapping cart.