Features: 1. Instruction - Flip and watch these bubbler and timers and relax with their slow and rhythmic drops. 2. Design - It has a mesmerizing effect when you watch the bubbles travel down in slow motion. Our bubblers work by letting gravity guide the colored droplets from top to bottom at a slow and steady speed 3. Advantage - No batteries or power needed Simply flip it over and it will start again and again Contrary to fidget spinners and similar sensory toys, these liquid motion bubblers will actively work to relieve your stress and provide you with hours of calming entertainment at home or even at the office 4. Great gift - A gentle fidget toy that pleases the eye and eases for comfort. It relaxes with its colorful droplets flowing to the bottom. It can be gifted to your kids for hours and hours of fun, but they can also be used by adults to manage their stress or even as decorative pieces to give your office desk an awesome look Notice: Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Description: Material: Acrylic Size: 9*3.5*14cm Battery: No Color/Style: As the picture shown Weight: 300g Application: for Killing Time, Stress Relief, Ornament Package Included: 1 x Dynamic Liquid Hour-glass Package List: 1 x Dynamic Liquid Hour-glass