The propellor is 1mm thick and 65mm in length .. it is not heavy. When we rub the stick we transfer a small amount of up-and-down motion to the end of the Stick. You do not need to push down with a lot of force onto the sharpie.

• hold the handle end of the Stick comfortably but lightly keeping the stick level
• hold a sharpie in your free hand as shown
• lower your forefinger onto the Stick and apply some horizontal pressure by lightly pulling into the green area
• now lightly move the sharpie back and forth across the ridges
• reverse the spin by lifting your finger off the green area and lowering your thumb and lightly pushing into the red area
• print / download PDF instruction sheet

Interactive Fun

The fun begins when you ask a friend to say a phrase or "keyword" of your choice !!

How to safely prank friends