100 bones printed black on yellow for optimum visual clarity, with a special plastic slider that conceals any 1 part of the tables at a time. Each
100 bones printed black on yellow for optimum visual clarity, with a special plastic slider that conceals any 1 part of the tables at a time. Each set contains all the times tables from 1 × 0 = 0 to 10 × 10 = 100. Pack contains 100 bones.