Hape abc matching puzzle play helps children develop fine motor skills, cognition and visual senses. Unlike other knob puzzles, hape puzzles by hape are screen printed onto the wood base. They are manufactured using quality russian birch plywood and child-safe german inks and finishes. The toy finishes are all non-toxic, child-safe and of the highest quality. Product dimensions: 11.3 (l) x 0.4 (w) x 9.7 (h)age: 3 to 7 years.