Pop Fidget Stress Reliever. Push pop-it bubble fidget octagon sensory toys for games and learning. Good for coping with anxiety, PTSD, and office stress. Good for helping kids with ADHD and autism increase concentration. Pop fidget toys make a sound like popping bubble wrap when pressed. Orange, yellow, purple, green, blue, and rainbow colors (custom colors available). Rainbow colors are priced differently. Choose from four shapes: Square, Octagon, Heart or Circle.