2 section aluminium extension ladder is suitable for DIY and light commercial useTwist proof rungs enhance safety and allow double sided use and clips lock sections togetherAvailable in different sizes(Sections X Rungs: 2x6, 2x7,2x8, 2x9, 2x10, 2x11, 2x12, 2x13, 2x14, 2x15, 2x16, 2x17, 2x18, 2x19, 2x20 2 section extension ladder is used by thousands of homeowners and the longest(2x20) extends to height of approximately 40feet.This premium quality ladder combines lightweight with outstanding strength and durability