Happy Will Nebula Plasma Ball Light Lightning Sphere Party USB Operated Sphere Party Desk Lamp Lights with Stylus Size: 3.94 in x 5.51 in x 3.94 inch USB powered sphere with coloured lightning flashes Create a magic and fascinating environment for your workstation When you touch the ball, the lightning bolts will combine into a strong beam and follow the movement of your finger Item come with a stylus as free gift