Little Engineer is a screw puzzle from the Puzzle Series Creative Mosaic range. A cream pegboard on a teal base, with a carry handle at the back, is covered in holes; children choose coloured plastic plates, line them up over the holes and fix them down with chunky cross-head screws, using the toy screwdriver and wrench that come in the box.

The box calls it 2D/3D screw assembly, and that is the difference from a flat peg puzzle. In 2D, a yellow square and a teal triangle screwed side by side become a house on the board. In 3D, a small bracket lifts a stack of round discs off the surface to make a pinwheel flower, or two wings stand up as a butterfly.

The plates come in circles, squares, triangles and straight strips with two, three or four holes, in yellow, red, dark blue and teal. The screws are a mix of the same colours plus black, so the screw heads become part of the picture.

A Screw Slot pattern card gives the first ideas: a dog, a cat, a bulldozer, an apple, a cherry tree, a flower and a butterfly. Most children copy two or three, then start inventing their own, which is where the toy earns its place on the shelf.

There is no electric drill in this set. Every screw is turned by hand with the plastic screwdriver, which is slower than a battery drill but is the real wrist-turning practice a three- or four-year-old needs, and it means nothing here runs out of charge.

The box is marked Ages 3+ and measures about 27.2 by 26.5 by 7 cm. The screws are small, so play at a table and count them back into the bag afterwards.

The Little Engineer screw puzzle is Rs. 3,250 with Cash on Delivery across Pakistan, including Lahore, Islamabad, Karachi and Sargodha. Stock, your city and the delivery charge are confirmed on WhatsApp before dispatch.

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