These were released in cardboard style boxes in 1985 and then in 1987 in white boxes. More colors were released then what is shown below.
Chokiranodon (チョキラノドン) Scissors ¥380
Hochikiratops (ホチキラトプス) Stapler ¥980
Kezurinozaurus (ケズリノザウルス) Pencil sharpener ¥380
Kuruntosaurus (クルントサウルス) Compass ¥380
Stegomejaras (ステゴメジャラス) Tape Measure ¥680
This is a special boxset of white versions of this set.
Some kind of store display for this series.
Ad showing this set including some of the color variations and the prior 4-piece set.