Kobra 240 SS4Classic line shredder comes with sturdy steel gears and metal chain drive system which offer reliability and resistance to wear, carbon hardened steel cutting knives unaffected by staples and clips. Motor thermal protection: 24 hour continuous duty motor without overheating and duty cycle. Kobra 240 SS4 can shred up to 26 sheets at a time in straight cut and also CDs DVDs, credit cards and floppy disks. Equipped with Energy Smart system with optical