1/5/10pcs Magnetic Push Pins Strong Magnets for Whiteboard Refrigerator Office School Classroom

The handle is comfortable, the size is relatively small, but the power is strong - it provides such a force to detach from a flat bare steel plate that, holding it by its handle with two fingers, it's barely possible to detach it, unless you tilt it, then it moves.

Strong magnets. As described. Thank you Joom!