... Up, improved from econo-roll up ,use thicker and stronger aluminum profiles. Stonger Roll Up:Improved from Econo-roll up , use thicker ... and stronger aluminum profiles, more stronger , more stabled snap top bar , padded protective bag ... !Item No:RS-LMaterial:Aluminum Color:Silver/BlackN.W:3.5kgG.W:3.9kgNormal Graphic ...