滑車

My six-year-old keeps coming back to this pulley during playtime, and I love watching her figure out how the cords and wheels work together. The hardwood frame feels sturdy enough to survive years of use.

The hardwood wheels spin so smoothly that my daughter could lift her heavy backpack all by herself. It’s a simple setup that really teaches how the cord and wheels share the load.

My five-year-old spent a good hour figuring out how to lift a small toy with the pulley system, and the smooth hardwood held up perfectly. I just wish the included cord was a bit longer for more ambitious projects—still, it’s a solid introduction to basic physics.