DEVELOP EYE HAND COORDINATOR: This toy will help to develop eye-hand coordination in young learners with a fun and interactive toy. ASSEMBLY: For ideal shipping petals are shipped flat and can easily be inserted in slits when received. Manufacturered by Excellerations. WOOD TOY: The singing tree marble run is made of wood so it's a durable toy that can be used and enjoyed again and again. SIZE: Wooden 28 inch H tree W/base and 9 Wooden balls (3 are 1/2" 3 measure 3/4" 3 are 1"); bottom of box tree base measures 9 1/2"sq. FUN SCIENCE TOY: This marble tree run targets NAEYC Curriculum Content Area for Cognitive Development and will make a fun addition to science curriculum.