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Don't know your blood type? Find out in minutes with this sterile blood type testing kit. Includes everything you need to take the test at home. Tests for A+/-, B+/-, AB+/-, and O+/- blood types. Each kit includes: Instructions for use Pipette 4x Swab Cotton ball Automatic lancet Cleansing swab Eldoncard Laminating sheet     This kit is single-use only.... More info

Special edition 3.5" iron-on NASA mission patch for the Apollo 11 moon landing. Free shipping. More info: The world's first lunar landing and return. All three stages of the Saturn V fired normally and on time. The Command Service Module (CSM) separated, turned and docked with the Lunar Module (LM). A single spacecraft firing was utilized to escape Earth orbit... More info

In the past, glass manufacturers added uranium to glass for color. Uranium has since become more strictly regulated, but the old uranium glass objects are still floating around. Because of the uranium content, these marbles glow bright green under ultraviolet light.  Size is around ⅞ – 1” diameter. Some dents and manufacturing imperfections can be expected. Slightly radioactive, but they're harmless. Makes... More info

Gallium is a metal with a very low melting point. In fact it will melt in your hand after a few minutes. Once it is liquified, it is an interestingly dense liquid, similar to mercury (except gallium is non-toxic!) This vial contains 15g of this interesting element. Non-toxic, but we wouldn't eat it. Like water, gallium expands when frozen, so... More info

Corning Pyrex® Glass Beakers are designed with uniform wall thickness. Borosilicate 3.3 glass provides the proper balance between mechanical strength and thermal shock resistance. The highest quality control in the industry means you'll get the most precise measurements possible. More info