4-Key Mechanical Keyboard Fidget Toy. Product size: 7.9×1.9×2.8cm, net weight: 30g per piece. It adopts opaque ABS housing, built with mechanical switches, LED lights and CR1220 button battery. The light turns on when pressed and off upon release. Solid blue, green or RGB gradient light options available. UV printing for logo is supported on keycaps and base. Multiple stock colors for selection. Individually packed in clear white PVC box, box size 8.5×4×3.5cm.