Toysmith Bubble Motion Tumbler, Colors Vary, Soothing, Stress Relief

The Toysmith Bubble motion tumbler presents the phenomena of liquid dynamics in a fun and soothing display. Flip this bubbler like an hourglass to watch the liquid elements inside squeeze, slip and float serenely to the bottom. This soothing visual display requires no power or mechanical parts, and can provide hours of entertainment. Durable construction withstands constant handling and resists cracks. The 3-1/4"X1-1/4"x6-1/8" Bubblers is ideal for display on a desk or shelf. No assembly required. Comes in various colors. This is not a toy.

Water Marbles 2 Color Liquid Motion Timer is a great visualization aid to show how water and oil don't mix. It's full of zigzagging Liquid motion fun. Turn this desk toy over and watch the 2 colored liquid drops make their way down the zig zag steps all the way to the bottom Assorted Colors This is not a toy