VEFINDOR Kinetic Optical Illusion Balls, Fidget Toys for Adults Stress Relief, Desk Toys for Office Conversation Piece (Violet)

MIND BENDING EFFECT: you’ll instantly notice minutely milled lines and smooth surface texture upon touching, revolving sphere that creates optical illusion of continuously flowing helix and provides mesmerizing experience SOLID SPHERICAL BODY: made of aluminium, a helix-shaped groove milled alongside the whole surface designed to spin on any flat surface, rotating base equipped with bearing, guarantees a smooth and silent spin as well as long-lasting DYNAMIC SCULPTURE: spin visual illusion ball and it will change its patterns along with direction and speed of rotation, enjoy different visual effects from various angles, each unit is designed with attention to the smallest detail CREATIVITY & IMAGINATION: keep focus, relieve stress, cure autism, mind bending illusion with continuous silent and smooth rotation offers an outlet for restless hands allows your mind to focus on the task in front of you WHAT YOU GET: 1 * visual illusion ball, 2 inch in diameter plus 1.7 inch in height and 7 ounces, suitable size to hold in your palm, it was the best choice for creating a solid desk toy that you would want to use, lifetime technical support