Note:A. Read This Instruction Manual Carefully Before Using The LadderB. Make sure each of the steps Full Extension when use it as Frame ladder Feature: 1.Upgrade Stability Type Unique Extend and Locking Mechanism with Thumb Buttons. Every section is designed to open and close safely. 2.Safe And Reliable Meticulous treatment, delicate design and wearable performance. Double grip handles on every rung guarantee your hands in right position to avoid pinching. Bottom caps and angled feet, easy to secure the ladder to wall and floor.3.Portable And Convenient Lightweight and compact size, easy to transport and store; a heavy duty closure strap secures the ladder firmly, easy to carry it with one hand.4.Non-Slip Design Safe and stable pedals, in compliance with skid resistant design standards.5.High quality and in a good condition,Ultra-light aluminum ladder, durable in use6. Free for another pair Non Slip Foot pad7. 4-way Combination Ladder System (16.5 Ft./14.5ft-foldable/12.5ft-foldbale ladder only) It can be used as a telescoping ladder, twin stepladder, stairway stepladder, and as two scaffold bases. Heavy duty strap to fasten up for better storage. Specifications: Cannot Fold*Material: Aluminum*Color: Black & Silver*Max. Load: 150kg/330lbs*Tube Thickness: 1.3mm*Weight:10.5Ft: 296oz /8400g12.5Ft: 377oz / 10700g14.5Ft: 433oz / 12300g *Folded Dimensions:10.5Ft: (31.9×19.69)” / (81 x 50)cm (L x W)12.5Ft: (34.7×19.69)” / (88 x 50)cm (L x W)14.5Ft: (37.0×19.69)” / (94 x 50)cm (L x W) *Unfolded Height:10.5Ft: 125.98″ / 320cm12.5Ft.: 149.61″ /380cm14.5Ft.: 173.2″ / 440cm Foldable11.8FTFeatures:* Steps design, easy to touch the place you can not touched.* Non-slip rubber feet.* Multi-Purpose Folding Ladder.* Aluminum Step Ladder, Durable And Lightweight.* All-Rustproof Aluminum Alloy Construction.* Anodized aluminium alloy construction for anti-corrosive protection.* Multi-Position Smooth Operating Hinges.* Safety Locks And Bottom With Rubber Protective Pads.* Save A Lot Of Space When Folded.* Specially designed stabilizer bars for better balance.* Easy to assemble and store, space-sa