OrthoBones* Model, standard Ulna Left, hard cortical bone and softer, spongy bone (spongiosa), Anatomically accurate, Realistic haptics, Simple handling, Two-component structure, Excellent results, Dimensions: 28 x 4 x 3 cm, weight: 0.023 kg
Stem Explorations- Vehicles Building Set, Age: 8+, set includes 130+ parts for a single child or team of 2 children to build 7 vehicle models with different power sources, including push-power, rubber band power, wind power or a spring motor, for grade 3-5