As well as having hidden insulation and PVCu parts, Ecotilt™ also hides it's strong metal Safety Stays which allow the sashes to tilt to a safe angle. These can only be seen when the sashes are in the tilted position. Ecotilt™ also comes as standard with Ultrashoe™, the mechanism that makes the Mighton Assisted Lift™ Balances simple to adjust. Once again this is completely invisible until the sashes are tilted.