Combines science?? math?? artistic creativity and ...fun!</br>Created by the Brunel University in London</br></br>Product Description</br></br>Upgraded to Included 44 Activities!A best-seller for over 20 years?? the Magic Penny Kit has finally been updated! Perform astounding feats of magnetism as you playfully explore magnetic forces?? motion and stability. Great conversation starter for geometry - discuss shapes?? positions?? planes?? symmetry and more. This new version includes additional coins and a whopping 44 activities. Includes 2 super strong magnets encased in stainless steel?? 32 newly minted British pennies plus a bonus US penny?? and an instruction booklet with 44 activities.Please note: this version has been updated for 2014. The original version (with fewer pennies) is NO LONGER AVAILABLE (item# 3081463 ). Stainless steel casing dimension - 3.313" 1"D?? Magnet dimension - 1.938" x .75"W x .75"D</br><br/>http://www.amazon.com/gp/product/B00OP967YUU websites