Trend Windows and Doors - Synergy Double Hung Friction Feet Trend Windows and Doors - Synergy Double Hung Friction Feet from James Litster Trend Windows and Doors - Synergy Double Hung Friction Feet 3D modelling / rendering project for the Trend Windows and Doors marketing department. gLike Trend Windows and Doors - Synergy Double Hung Friction Feet 3D modelling / rendering project for the Trend Windows and Doors marketing department. 3D Modeling Share R 7 n Available Freelance, Full-time, Moonlighting James Litster Industrial Designer Sydney, Australia Follow Contact