Dtrack System for Retractable Outdoor Blinds Take the Indoors Outside With Retractable Outdoor Blinds Smooth, Rounded ProfileThe specially designed side channel is the main feature that sets this Dtrack system apart from the rest. Its smooth rounded profile is designed to enhance and frame the fabric while minimising visible zips or Kadar spline edges. The side channel and the wall mount combination give you the ability to adjust the Dtrack for optimum ease of operation. Easy to InstallThe Dtrack wall mount makes installing retractable outdoor blinds a breeze. It has been specifically designed to assist with ease of installation and can be pre-drilled before going onsite by making use of the centre scoreline. Each length has been manufactured with a step height to allow for installation on round posts.