With the Ravensburger String Art Set Hearts, children aged 6 and up can learn the popular technique of String Art. Instead of using nails, plastic pins are pressed in. Once all the pins are in place, colorful threads can be stretched across the front of the board in any desired pattern until the thread arrangement reveals the design. Each person decides when their thread picture is finished. String Art is back in vogue. The holes in the design boards are color-coded on the back, making it easy to see where each pin should go. The set includes plastic pins in various colors, two design boards with templates, and yarn on spools in different colors. Warning: Caution. Not suitable for children under 36 months. Small parts. Choking hazard.