This science kit includes 5 pcs of genuine meteorites, a one inch magnifying box, an educational information card, Authenticity certificate and a velvet pouch. The meteorites measure approximately 3/8- 1/2 inch.  These meteorites fell over 4000 years ago!These meteorites were found in the Campo del Cielo area in Argentina. It is estimated that the original meteorite weighed over 50 tons before it hit the earth (there are 2,200 lbs in one ton)! The meteorites are composed mostly of iron with some nickel. Each kit is assembled in the USA.Buying this kit supports The Pearl Buck Center in their mission to help people with disabilities obtain employment. We also donate 10% of our profits to charities! Dancing Bear is proud to provide our customers with a 100% satisfaction guarantee.If you are not completely satisfied, we will gladly refund your money plus shipping. Shipping is fast and ships by Priority mail.