Allows early learners to develop their scientific knowledge. You can use the kit to grow crystals quickly and easily, to heights of up to 4 inches. It comes with everything you need to grow your own magic rocks.

Product Features:

Instant crystal growing kit
Boxed contents: 1 x Tank, 1 x Background print, 1x Sticker sheet, Metallic Salts, Sodium Silicate, detailed instructions
Create brilliant underwear garden
Rock grow to different heights up to 101.6mm
Warning: Skin and eye irritant. Harmful if swallowed.