These liquid motion bubblers are a fun and soothing way to encourage mindfulness and focus in the classroom or at home. Feel your stress drip away as you watch the mesmerizing patterns formed when the two colorful liquids mix. It's fun and relaxing and simple to use - just flip over to start again. Good for desktop use for all ages ranging from children to adults. Measures 2" x 5 3/8".  Each sold separately.