Sensory strips help calm and focus! Simply touch, swipe, scratch or fidget with Zen Strips to manage stress, boost concentration and enjoy a calming effect. Zen Strips seamlessly integrate into your daily surroundings, offering a discreet presence that goes unnoticed, whether you're studying, at the office, or navigating through your everyday activities. Peel & stick to phones, laptops, tablets, water bottles and more!. Bumpy Gradient Classpack. Classroom Aid Type: Manipulative Resource; Use Scenario: Behavior Management Tool; Width: 1"; Height: 4".