Porsche isn’t just a car manufacturer. Over the years, the company has also been involved in various other products, such as bicycles, skis, and even tractors. The skibob that is going up for auction through RM Sotheby’s is one of the most peculiar items to ever bear the German brand’s emblem.

Skibobbing is a winter sport that combines elements of sledding and skiing. Riders sit on a frame resembling a bicycle, but with a pair of skis mounted in tandem instead of wheels. They then navigate down a slope on this apparatus, steering by leaning left and right.