With this set, you can conduct experiments that glow in the dark. You can even make your own lava lamp, make invisible ink, phosphorescent slime. All the experiments are explained step by step in the included full colour 16 page illustrated booklet. it Includes 3 vials of phosphorescent colours and a UV lamp (requires 2 x CR2016 batteries, supplied). Suits ages 8 years +. Features: With this set you can conduct experiments that glow in the dark You can make your own lava lamp You can also make your own invisible ink Also you make phosphorescent slime It includes 3 vials of phosphorescent colours It also includes a UV light (requires 2 x CR2016 batteries, included) All the experiments are explained step by step in the included full colour 16 page illustrated booklet Suits ages 8 years + Specifications: Dimensions: H:25.0 x W:5.9 x D:20.0 cm Colour: Multi Batteries Required: Yes Material: Plastic Model Number: 3011