JACOBS LADDER PIONEER TOY - A classic toy with sensible black ribbons. Each board is 2 inches wide 3 inches long.
Holding on to the edges of one of the end boards of the Jacob’s Ladder, hold the ladder stretched out lengthwise above the floor. Now turn the board in your hand like you were folding the ladder up. This will start the ladder and it will seem like the boards are tumbling over each other. Turn the board in your hand over again and the boards will tumble again!