Material: stainless steelSimple operation dimension: approx. 10.4" x 4.7" x 4.7" (L x W x H) (See picture)weight: approx. 1.2 kgHow to use:1. Open the box and install the handle2. Push shaft up to adjust the distance between the knife and the screw3. Pierce a stick into the potato4. place the longer end of the stick across the hole above the knife5. Place the other end of the stick into the hole in the screw6. Rotate the handle clockwise to cut the potatoPackage includes:1 x spiral potato twister