Like a gemstone? No, it's a magic prop!...PREMIUM METAL Series. One of the greatest paddle tricks of all time, commonly known as the "Jumping Diamond." The effect: A ruby suddenly appears on one of two copper rods. The ruby then jumps to the other rod, multiplies, moves around, and finally, the vibrant red ruby transforms into a deep green emerald. Crafted from solid metal with a satisfying weight (90mm long, 8mm x 5mm thick, 20g per rod), this set offers smooth and effortless handling, making every move feel seamless.