Tips: 1. it is very important to suction the cutter and make sure no movement during using 2. the fry length is 3-1/2 inches at most, large potatoes should be cut the ends off or cut it in half and then place the flat side downin the cutting bay 3. if need to make sweet potato fries, please microwave the sweet potato for 2 minutes or cook them slightly to soften it up 4. blade maintenance: the blade aids cleaning after cutting 2or 3pcs potatoes and keep the blade dry easy to use: 1. place the cutter on a flat work surface, and then push the handle down 2. align the corresponding pusher grid on the stainless steel plate and turn the knob to the left to lock into place 3. cut the ends of the potato to make it easily balances on the cutting board 4. place a potato inside the main compartment, push down the lever/handle, and you’ll get your perfect shaped sticks. ( please do not overload the chute which causes it to block. only load in slender potatoes or simply cut hefty tubers in two.)