This is a Kokuyo Harinacs Stapleless Stapler, its ingenious design needs no needles, no consumables. You can use it with "Horizontal binding" and "corner binding". The shape of the binding hole is designed as an arrow blade which makes sure that the binding papers won't come off easily. Its compact palm size doesn't take space, making it convenient to carry and use. And it's feel 20% lighter than the old ones when you are binding, and also your hands won't be sore with its lever shape. There is a binding confirmation window on the top of the stapler. When it is closed, you can bind the paper while checking the position of the binding hole through the window. When it is open, you can take out the the scraps and dust of the papers. Depending on the type of paper, the number of sheets to be bound may be reduced or it may not be bound. You'd better try with unnecessary paper before using.