The Shaping Stick consists of a #40 grit (very rough) sandpaper glued to a wood stick. The Flat Shaping Stick is a 1" wide, 9" long stick. These are very useful for shaping Pinewood DerbyÂ® Cars! Note: The Shaping Sticks come unassembled. You must glue them together and allow the sticks to dry before attempting to use them. Most household glues need about 45 minutes to dry completely.