Size chart Booky
The Booky is designed to sit comfortably on the finger, which is why two Booky sizes are available.
You can choose between small and large to choose from. To do this, please measure the circumference of your child's index finger of your child in the area of the top joint.
![](https://cdn.shopify.com/s/files/1/0550/8825/1096/files/Bookhoover_Booky_Rosy_Bubble_Lesefreund_Lesehilfe_Large_Small_Info_cut.png?v=1718710651)
If the circumference smaller than 4 cmchoose small.
From 4 cm and more choose large.
Tip:
If you don't have a flexible measuring tape, you can simply take a thread, shoelace or cord, wrap it around the joint and then read off the length in centimeters using a ruler, triangle or folding rule.