Features of the Hyperlite Shim 4.7 Wakesurf Board LAYERED GLASS: Our fiberglass is available in 3 weights depending on the Board. Over time, traditional woven glass fibers will separate. With layered glass every Hyperlite deck will have the same pop off the double up year after year. MACHINED EVA TRACTION DURASHELL CONSTRUCTION SINGLE CONCAVE BASE CONTOUR EPS CORE MELLOW TAIL CHANNELS LAP CONSTRUCTION Specifications Total Volume: 14.6 Liters Tip & Tail Width: Pin Tail Center Width: 21.0in. Rocker Style Height: 2.1in. Tip & 0.9in. Tail Fin Qty: 1.5in. Fish (2) 3.5in. Torq (2) Weight Range: up to 180 lbs.