The picture shows all (6) Post Alpha-bits Cereal Pencil Clip Letter Prizes in this lot. One is unopened and the back of it is shown. The unopened one looks like the one to its left on the other side. These are made of a rubber material and are imprinted with the color and designs as pictured. I do not know what year these were used. ach is marked on the back as follows:
POST ALPHA-BITS CEREAL
They each measure 1-3/4" tall and are in near mint to mint condition.