American Science Hand Boiler An exotic bit of hand-blown glass with a bulb at top and bottom connected by some zippy tubing that spirals, loops, and/or jogs. In the closed system is some colored liquid (methylene chloride) that... 0 Reviews Now: $13.99 Was: MSRP: Add To Cart The item has been added
American Science Sandscapes Sensory Scene Visual Stimulant A very stylish 3-1/2" x 5-1/4" clear acrylic panel, less that 1/2" thick has two flattened hourglass chambers within it. Both have non-toxic fluids and suspend in one are black grains that are... 0 Reviews Now: $24.99 Was: MSRP: Add To Cart The item has been added
