The Gordigear Tanami Plus Annex is made from the same fabric as the roof tent flysheet. It attaches via a sail track and zip mechanism to the tent and consists of four walls (back wall with flap for vehicle access) and a heavy duty removable floor (attaches via zip). All openings are mosquito net protected and can be fully closed.Although the Tanami Plus Annex can be used for the same purposes as the Tanami Base Annex, its key benefit is that it provides additional sleeping space for up to two adults in an enclosed and protected environment. Of course having the roof tent ladder inside the annex has its merits, in particular in rainy situations. Moreover, entrance and car access openings are vertically offset to create a watertight base and prevent rainwater from flowing into the annex, e.g. from underneath the car. We also offer optional height extensions to cater for exceptionally high setups.We offer this product in two different lengths, 170cm and 200cm. Please make sure to order the correct length for your vehicle. For extra high installations, we have extensions available, see below. They add 20cm per extension.