Universe-in-a-Box 22-piece Set neutron and Electron-neutrino

and Electron-neutrino

but they will be the same in every other way

The UNIVERSE-IN-A-BOX 22-PIECE SET contains all the particles from the Standard Model plus four Theoreticals and Two nucleons

Please allow extra turnaround time

Mini Tau-neutrino

Universe-in-a-Box 22-piece Set neutron and Electron-neutrinoThe UNIVERSE IN A BOX 22 PIECE SET contains all the particles from the Standard Model plus four Theoreticals and Two nucleons, for a total of 22 particles, covering most of the known universe. These miniature particles are replicas of the regular particle plushies but are about one third the size. They fit neatly in a reuseable, sturdy, black cardboard box and the set includes a 24 page mini booklet explaining each particles properties, stats and fun