Easy-to-clean shapes are durable enough to be used indoors and outdoors Enhance traditional block play and light play with this upgraded nesting toy Set includes 6 circle shapes in nesting sizes and rainbow colors as well as double-sided concept cards Largest circle measures 6" in Diameter x 3"H, smallest circle measures 2.46" in Diameter x 3"H For ages 2 years and up 2 years & up. An upgrade from the classic nesting toy, the extremely resilient and durable pieces in the Discovery Circles - Rainbow set enhance open-ended play indoors and outdoors. Children can stack, balance, create patterns and learn about shapes and colors while experimenting and exploring using this set. A perfect companion to light play activities, loose parts play or traditional block play, this vibrant toy set bridges the gaps between various play patterns. Combine with other Discovery shapes and stacker sets (sold separately) to expand possible play outcomes.