Certificated to European Safety Standard EN131. * Anti-Corrosion and Lightweight 6063 Aluminum Alloy Construction. * Unique Extend and Locking Mechanism with Thumb Buttons Clicks Smoothly and Effortlessly. * Total 8 Steps, Adjustable in 1 Foot Increments - Great for Any Size Project. * Non-Slip Rubber Angled Feet to Protect Floor Surfaces and Give Great Grip in All Positions.