Mountain Boy Sledworks Classic Flyer The runner sled you've been looking for: incredibly durable, and so well-built you'll want to hang it on the wall Birch deck and willow handrails have 3 coats of marine-grade finish; all bolts are stainless steel Extra-strong runners of powder-coated steel are designed to handle the toughest sledding Patent-pending double-pivot design gives you far more turning power than on a traditional Flexible Flyer One year warranty; adult assembly required. Measures 52"L x 24"W x 5"H.