Bayko building set in a large blue cardboard box with a yellow printed paper label on top showing a boy and girl playing with the set. The girl wears a white dress and two pink hair bows, and the boy wears grey shorts, blue jumper and a pink necktie.

Inside are two smaller cardboard sections containing various plastic pieces, three paper leaflets, and one showing illustrations of various models to be made with the set. There are six green plastic base plates, some screwed together, with 140 holes in each, three large rectangular sheets, one even smaller rectangular sheet, and one square sheet. There are four miscellaneous LEGO parts - a red cylinder, a yellow and a blue square, and a grey rectangle.

There are three yellow cardboard boxes. These contain respectively: one - a green handled Bayko screwdriver, four small screws, a metal bracket, 15 perforated square metal plates, and 25 perforated metal sheets shaped like bars; two - 171 short metal rods of varying length; three - 76 long metal rods of varying length.

In one of the open sections of the main box are various red and white plastic pieces of different shapes, either simulating bricks or gabling. There are 90 white bricked squares, 51 lengths (various) of white bricking, one white gable, 71 red bricked squares, and 27 lengths (varying) of red bricking. There are also two miscellaneous pieces of LEGO - a tiny grey cube with a round red bit attached.

In the other section are: four sets of grey steps, eight lengths of white tubing, one metal rod, two white and one red bricked square, and one length of white bricking, two red slabs with perforations down one side, three pieces of white gabling, seven green doors, one red arched door, three red chimneys, two red semi-circles (perforated), five white rounded segments and ten red ones, 25 small green windows, five green bow windows, three square green windows, and two rectangular green windows.