Inertial City Traffic is a set of four cartoon vehicles from the Urban Transport range, sold together on one blister card: an orange helicopter, a blue ambulance car, a green police van and a red fire truck. Each one has a big friendly face where the windscreen would be, chunky black tyres and QCAR printed across its front bumper.

Inertial is the important word on the card. Every vehicle hides an inertia motor, the kind most people call a friction car: roll it forward along the floor a few times, let go, and it keeps running on its own. Nothing needs charging and there are no batteries to buy, so the set is ready to play the moment the card is opened.

The details give a child plenty to talk about. The ambulance wears a white roof light with a red cross, the police van carries a star shield on its side and a yellow light bar on top, the fire truck has a ladder folded on its roof, and the helicopter has a top rotor, a tail fan and four wheels so it can race the others along the floor.

With four vehicles in the box, two or three children can play at once, and a rescue story almost tells itself: the fire truck rushes to the fire, the ambulance takes the patient to hospital and the police van keeps the traffic moving. Acting out jobs like these is how young children pick up new words, in Urdu and English alike.

The card is marked 3+ and measures about 27 x 27 cm, with the four vehicles sitting in a two-by-two window. That makes it a neat present for a birthday or Eid with no extra wrapping, and the chunky moulded bodies are easy for small hands to grip and push.

The price is Rs. 1,950 for all four vehicles, with Cash on Delivery across Pakistan, from Karachi and Lahore to Islamabad, Peshawar and Quetta. Stock, your city and the delivery charge are confirmed on WhatsApp before dispatch.

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