Feature:1. EASY TO PLAY: Simply rotate the inner body and hold onto the outer body for a strong vibrating feedback. Press the rotation button, release while the bodies are misaligned, and watch them rotate rapidly for a visually stimulating experience.2. INNOVATIVE ROTATING TECHNIQUES: Experiment with different rotating techniques by rotating the inner body while reversing the outer body. Explore the unique ways to interact with this toy for endless fun and stress relief.3. STACKABLE ROTATORS: Stack two or more rotation toys together to create a synchronized rotating effect. Rotate one toy and watch as the others rotate in synchronous, adding a dynamic fun to your playtime.4. COMPACT AND PORTABLE: Measuring at 55 x 50 x 10mm, this fingertip rotation toy is the great size for on the go play. Carry it in your pocket or bag for anytime stress relief and entertainment, making it a must have gadget for your daily routine.5. ALL METAL DESIGN: Made from quality stainless steel, this fingertip rotation toy offers a heavy and robust feel, providing enhanced feedback with every rotation. The metal construction ensures long lasting use and a satisfying weight in hand.Specification:Item Type: Fingertip Rotation ToyMaterial: Stainless steelProduct Size: Approx. 55 x 50 x 10mm / 2.2 x 2 x 0.4in.Package List:1 x Fingertip Rotation Toy1 x Storage Bag