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My 4-year-old figured out the pull-back motion in about a minute and now he lines all of them up on the rug to race. The die-cast body feels solid, and at 7 inches long they're a good size for little hands to grip.

The pull-back action is the whole reason this works for my nephew — he figured out the cause and effect in about two minutes. The die-cast body has real weight to it, so it doesn't fly off the table like the cheap plastic ones. Solid little engine for the price.

My son presses the engine back a few inches and watches it zoom across the floor every single time, and the solid die-cast feel makes it sturdy enough for his rough play. The pull-back mechanism is satisfyingly smooth, and I love that it’s teaching him cause and effect without any screens involved.