Roba’s Wooden Marble Run lets the builder be creative and their imagination build the course. Wooden Marble Run Set offers endless possibilities to build a new exciting marble run every time. The set includes 20 glass marbles and 80 building blocks. Colorful, printed and natural wooden building blocks can be cleverly combined. The building toy set incorporates elements with sound effects such as two height-adjustable bells, a sound staircase and promotes creativity, patience, concentration along with motor skills. All materials used are tested for harmful substances and certified. In addition, the building set abides the EPH quality seal of the Institute for Wood Technology. The varnish used for the toy set is safe and gentle on the skin. For ages 3 years old and up. Wooden Marble Run Set offers endless possibilities to build a new exciting marble run every time and lets the builder be creative and their imagination run its course. The set includes 20 glass marbles and 80 building blocks. Colourful, printed and natural wooden building blocks can be cleverly combined.The building toy set incorporates elements with sound effects such as two height-adjustable bells, a sound staircase. Promotes creativity, patience, concentration along with motor skills. For Ages 3+. Measurements: 15.16 Length/Inches Assembly: Assembled Base Material: 100% Wood Country of Origin: Imported p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 15.0px Calibri; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} WARNING: CHOKING HAZARD – small parts. Not for children under 3 years.