This is a set of scientific experiment props, made of Stable-quality material, safe and , and can be used with confidence. The fingerprint toy can develop children's ability to use their hands and brains. It is a perfect scientific teaching aid. Features -Color:Multi -Material:Plastic, Acrylic -Size: 12.50X0.50X0.50cm/4.91X0.20X0.20in -Note: Accessories are color. -It is made from stable quality material for long time and use. -Smooth surface, stable performance. It is not easy to damage or break. -With it, students are able to pass this item around and try it themselves. -A nice your friends who do experiment, they will like it. Also, will be a great addition to your laboratory supplies. -It is lightweight for easy and convenient to carry and store when not in use. Package list: 1 x Powder 1 x Air Blow 1 x Acrylic 1 x Lens 1 x Tape 1 Pen 1 x Magnifying glass