Buy Montessori Learning Toys The colorful wooden Stacking Ring helps teach children about size and colors. For safety precaution, the center rod is foldable. • Package Dimension (W x L x H) : 4.9 in X 4.53 in X 7.4 inches • Product Dimension (W x L x H) : 3.15 in X No Data Found for Length (in). X 6.1 inches • Recommended Ages: 12 months and up Buy now: https://kidadvance.com/stacking-ring.html