VIAHART Mighty Molecules 150 Piece Interlocking Building Set Every Jar Has More Than 140 Pieces! Excellent Value | Hours of Play and Tons of Awesome Creations! Teaches Spatial Thinking | Engineers Start Here! Give Your Child The Skills Today! SIZE AND WEIGHT | Product Measures 5 x 5 x 8 in inches | 12.7 x 12.7 x 20.4 in centimeters | Product Weighs Approximately 2 lbs / 1 kgs | These dimensions and weight do not include the packaging 30 day no questions asked return policy and FREE returns! | Watch our video to learn more about this product: https://youtu.be/ggQn_nJOPTU