Create crystals and watch them grow day after day. You can also assemble geodes which insides is set with sparkly crystals to decorate your bedroom ! Includes : – protection goggles- latex gloves- pipette- spatula- pair of tweezers- 2 small 20 ml glasses and their lids- brush- a spoon-shaped micro-spatula – 3 50ml measuring cups and their lids- 7 tubes and their safety lids- 2-part geode mould and its lid- powder plaster – calcium sulfate – gouache for the geodes – security key for the tubes- 10 potassium alum bags- 5 colouring tablets – container for liquid plaster – illustrated manual Box dimensions : 35 cm x 26 cm x 7 cm.