Tiny in size but BIG on therapeutic benefits! These little grey fidget boxes will help improve focus and concentration while exercising fine motor skills. Click, glide, flip, breathe, roll, and spin away fidgety nerves and fingers. Also helps stimulate neutral responses that actually produce an increase in blood circulation to the brain and extremities. Made of environmentally friendly ABS plastic, each fidget cube measures approximately 1-1/4" square. It's the perfect fidget to have on hand!