Larger in size fidget, heavier weighted marble. Colorful, discrete, and dishwasher safe. Can be used anywhere from classrooms to board rooms. Kids on the go, young adults, athletes preparing for the big game, individuals with ADD or AD/HD, people with obsessive compulsive disorder, dementia, or autism. Calms nerves and reduces stress from general anxiety to test taking and public speaking. Stimulates neural responses increasing blood flow. Great for special needs. 10 per package.