The step is composed of 80% plastic and 20% from steel and aluminium. This combination of parts is the result of a long process of R & D and as a result the steps are highly durable and resistant to corrosion and extremely lightweight. Comes complete with patented quick manual release system for use in emergencies.¥ Energy Input: 3A.¥ Anti-slip and anodised aluminium footboard¥ Compact size¥ Sensor for Òopen stepÓ warning light¥ Footboard width: 440mm¥ Weight 6.8KG