TG-5D DOB 18"-20" Truss Dob Cover for horizontal parking position. TG5D Specs: Major truss cover length 63", rocker box length 37", combined total length of 100". Rocker section of cover is 37" square, open at the bottom with a draw string. Truss portion has 25" diameter at UTA, with increasing taper to 37" at rocker box. Two 1" web straps with heavy duty adjustable cam locks are provided for additional cover securing and attachment to hold down weights. Availability: Usually ships the next business day TG5D 888.291.6577 Located in Saint Augustine, FL 32095 By faith we understand that the universe was created by God's command, so that what is seen has been made from things that are not visible Copyright (R) 2017 SmartAstronomy, All rights reserved.