Class set of reversible magnetic number lines with 30 orange, 30 green, 30 red, 30 blue, and 30 yellow magnetic dots.
Reversible magnetic lines are numbered 1-25 on one side, and are unnumbered on the reverse side.
Class set of reversible magnetic number lines with 30 orange, 30 green, 30 red, 30 blue, and 30 yellow magnetic dots.
Reversible magnetic lines are numbered 1-25 on one side, and are unnumbered on the reverse side.