The set of liquid motion bubblers is 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 to start again. Good for desktop use for all ages ranging from children to adults. Set includes four liquid motion bubblersDetails:Multicolor liquid motion bubbler setEach measures 5.5" x 2.375" x 1.375"Sold as 4 piecesFeel your stress drip away as you watch the mesmerizing patterns formed when the two colorful liquids mixIt's fun and relaxing and simple to use—just flip to start againGood for desktop use for all ages ranging from children to adultsFor ages 5 and up