String art, also known as thread art, was originally invented in the 19th century by Mary Everest Boole as a tool to help teach children about mathematical concepts. In this DIY kit, you are given a cork board with a dotted outline of Heart shape printed on it. Hammer nails on the dots and wind coloured wool strings around the hammered nails to create a beautiful heart design. Gift it to your loved ones or use it for your personal space decor. The most interesting fact is that the board is made from cork - a material that is derived by peeling the bark of an oak tree without harming or killing it. In fact, the bark regenerates every few years, making cork a renewable and biodegradable material. So, your new hobby doesn't harm the Earth! Contents: 1. Cork base (6" X 6") with dotted outline of Heart shape printed on it 2. Wooden hammer 3. Nails 4. Woollen thread (Pink, White)