C&H Solutions Colorful Office Thinking Hand Boiler, Glass Science Energy Transfer, Children Science Experiment, Love Birds Color Meter Hand Boiler, 2 Pcs (Color May Vary) By Great Graduation Gift, Science Experiment. Valentine's Day Couples Love Meter. Glass Sciences Energy Transfer.Office Thinking Hand Boiler. Photos for display only, per order only two items. Dimensions:2x7x2 2oz Safty Hard Box.