The fellowes powershred 59cb is a higher security premium cross cut shredder ideal for personal use in an office home office or home environment it is equipped with jam blocker technology this technology stops jams before they start by measuring the amount of paper being fed into the machine and deciding if it can handle it the 59cb features the unqiue safety lock which can instantly disable the shredder and prevents accidental activation in addition to shredding 9 sheets of paper at a ti