HBTower A Frame 5 Step Extension Ladder, 19 Ft Multi Position Ladder with Removable Tool Tray and Stabilizer Bar, 330 lbs Capacity Telescoping La dder for Household and Outdoor Work (Blue, 19FT)STABILIZER BAR: Added 2 stabilizer bar on the basis of A frame ladder,which can increase the contact area between the ladder and the ground and improve the safety of the ladder. Our ladder effectively improves the stability by 36% compared with the other ladders. TOOL TRAY: The ladder come with a large removable tool platform to accommodate tool equipment and reduce the number of times you climb up and down the ladder. SAFETY LOCK: We use safety