Universe-in-a-Box 22-piece Set neutron Of course you won't get

Of course you won't get the full effect of their varying weightiness

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

Approximately 15 oz (425 gm)

This is a made-to-order

Also part of the Antiparticle 14-pack

Universe-in-a-Box 22-piece Set neutron Of course you won't getThe 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