Contains 20 magnetic and non-magnetic objects: some familiar some not neatly sealed in clear plastic pots with magnetic wands to test for magnetism.Good for individual and group work.Supplied in a strong storage case.Materials include:Sea shells wood plastic beadswashersstringchalkfoampaper clipsbrass screwsclothpaperdrawing pinspebblesaluminium foilpolystyrenefeatherscopper clipsnailsstainless steelriceDimensions: 220 x 330 x 50mm. WARNING! Not Suitable for Children under 3 years due to small parts.This product contains magnets or magnetic components.Magnets can cause serious or fatal injury if swallowed.