A fabulous build-on accessory for any Quadrilla marble run, this Quadrilla Railway Extension Set from Hape contains a total of 21 fun new construction pieces. Inside you'll find everything from a teeter-totter to plugs, spiral track and more. Also includes an instruction book with 22 pictures of construction designs for your Quadrilla marble railway.

Creative wooden marble run sets from Quadrilla are as famous for their durable quality as well as their innovative and unique design. Kids can arrange and rearrange their Quadrilla railway blocks for hours of building fun! Setting up each marble run is just as fun as watching the marbles tumble down and through the finished product.