Quick view Shamrock Shapes 5'7" Shamrock Shapes Custom Twinny Used Shortboard Surfboard LENGTH: 5'7"WIDTH: 20"THICKNESS: 2 3/8"VOLUME: 29LFIN SYSTEM: FUTURESFIN SETUP: TWIN FINS INCLUDED: NOCONDITION: This custom twinny by Shamrock Shapes is in great condition! The deck has light to medium pressure scattered but mostly under the back... Now: $274.99 MSRP: $324.99 Was: Add to Cart