Chemistry 5'4" x 18 7/8" x 2 1/4" = 24.6L round pin tail Zen 4.1 model shaped by Jason Bennett. Standard PU glass job (4oz/4oz deck - 4oz bottom) 4 belly channel bottom Captain Fin Snap In fin system for the Twins and Single Tab for the Twinzers. This board is in great condition. It was a Demo Board at Camp Shred. No major dings or dents. Airbrushed rails and belly channels.