The Tinkertoy Wonder Builder Basic Fun 15 Model Classic Building Set includes 100 interlocking blocks made of wood, suitable for ages 3 and up. This set from the Tinkertoy product line by Basic Fun! comes in a box packaging, allowing children to unleash their creativity and imagination while constructing various models and creations. This classic building set provides a fun and engaging experience for young builders to explore and expand their problem-solving skills.