Features Non Slip Surface: This Ladder Levelling Tool with A Non Slip Surface Is Designed for Professionals And Is The Perfect Tool for The Everyday Handyman. Stable Base: This Ladder Levelling Tool Allows You to Use Extension Ladders on Stairs by Creating A Stable, Level Base on The Stairs. Easy to Use: This Ladder Levelling Tool Can Be Set up in Minutes Without Installation, Which Can Also Be Easily Moved from One Staircase to Another with Little Effort. Robust And Durable: This Ladder Levelling Tool Is Made from A Safe And Durable Aluminium Alloy That Is Extremely Robust And Will Last A Long Time. Excellent Applicability: This Ladder Levelling Tool Can Be Used for Two Foot Tread Ladders, Telescopic Ladders, Straight Ladders Etc. Specification: Item Type: Ladder Leveler Material: Aluminium alloy Suitable Ladder Feet: Width maximum: Approx. 19cm / 7.48in, Length maximum: Approx. 55.8cm / 21.97in Package List: 1 x Ladder Stabilizer Top 2 x Ladder Stabilizer Support Bar 1 x Ladder Stabilizer Bottom 3 x Adjustment Screw Bar 3 x Fixing Clip Note: This ladder leveler is only suitable for straight ladders, not for herringbone ladders Package List 1 x Ladder Stabilizer Top 2 x Ladder Stabilizer Support Bar 1 x Ladder Stabilizer Bottom 3 x Adjustment Screw Bar 3 x Fixing Clip