Children ages 3 and up can experiment with layering, patterning, and abstract expression using Discovery Frames. Large, translucent frames in square, triangle and circular shapes feature notches and holes for weaving and lacing using the twine strings included in the set. Layer found loose parts (not included), furthering a child's organic connections. Enhance creative play with 6 double-sided concept cards providing creative inspiration. Square frame: 22cm W x 8mm D x 22cm H, Triangle Frame: 26cm W x 8mm D x 23cm H, Circle frame: 23cm Dia. x 8mm D.