Check out all of my Montessori items by searching for hashtag: #dfmontessori This is a custom ring stacker sourced by me. It includes a set of large green discs (from Haba I believe) and a set of small primary discs (from Elite Montessori). There is a yellow disc included, but not pictured for six discs total. The wooden base has some wear on the bottom as shown, as do all discs from sanitization. They still function perfectly and help teach some important concepts in Montessori. This is heavy wood. Bundle more items to save on shipping-- just send me a message before purchase. Smoke free and pet free. #montessori#woodentoy#development#educational#earlylearning#baby#grimms#custom#stacker#wooden#learning