BONNYCO Invisible Ink Pen and Notebook, Pack 8 Mermaid Party Bags Filler & Pinata Toys | Mermaid Birthday Decorations | Stocking Fillers for Kids Birthday | School Prizes & Gifts for ChildrenPACK 8 MERMAID Top Secret Pack Mermaids contains 8 sets of an invisible ink pen UV light (batteries included) and a small notepad with fun 3. 3x3. 8 in drawings of mermaids. There are a total of 8 magic pens in 4 different colours: lilac (x2), pink (x2), blue (x2) and green (x2). Clear ink is the same colour in each SUPER FUNNY The spy pens for girls and boys can be used to write secret phrases or drawings in the notebooks, which can only be