The technique is similar to painting by numbers. Each crystal art notebook design has a numbered, adhesive template. Using the magic pick up pen (included), simply lift up the coloured crystals and place them on the corresponding numbered dots. They affix instantly! The technique is relaxing and therapeutic, and the result is a beautiful piece of rhinestone art which you can keep or gift to loved ones. They are suitable for ages 6 and up. Each notebook contains 50 lined pages and is approx 26 x 18cm in size. Contents: 1 x Crystal Art Notebook template 1 x instruction manual 1 x pick up pen 1 x tray Bags of crystals and ziplock bags