Chain-driven MechoShade roller screens are part of the most comprehensive manual solar protection and room darkening system available. They feature a complete line of ThermoVeil® and EuroVeil® visually transparent sunscreens and room darkening shades, a full range of hardware options for manual shading featuring multi-band operation with one drive chain and our Lifetime Limited Warranty with 100% replacement and no depreciation over the life of the warranty.