Gendernot specified unisex shapesphere cylindrical pieces216 materialmagnet metal note3mm magnetic balls goldensilver 2 color choose diameter 3 age5 to 7 years 14 years up 8 to 13 years category3d puzzles diy kit science discovery toys educational toy magic prop building blocks magnet toys stress relievers magnetic balls holidaychildrens day carnival valentines day birthday christmas new year shipping weightkg0057 package dimensionscm757545 net weightkg0062