This is a Speed Cube Snake Ruler, also known as a Twist.It is a toy with 24 wedges identically shaped liked prisms.The wedges are connected such that they can be twisted, but not separated.Through this twisting the puzzle can attain positions including a straight line, a ball, a rectangle, a snake, and many more imaginative shapes and figures.It is usually speed-solved while going from a straight line into a ball (see image).This puzzle comes fully assembled the factory.Please note that the image is a stock photo and the actual product may not look exactly as pictured (color may vary).