Enhanced Stability with Bottom Stabilizer: Our telescoping ladder updates a bottom stabilizer. This feature expands the ground contact area during use, providing extra stability, weight capacity of 330 pounds and The distance between each rung on our ladder is 40 cm (approximately 15.75 inches). Anti-Pinch Slow Descent Design: Our collapsible ladder incorporates an innovative anti-pinch slow descent feature that ensures that the ladder retracts slowly and smoothly, preventing the risk of pinched fingers or hands. Enhanced Strength and Stability: Addressing the demand for a sturdier ladder, our extendable ladder features a alumium and reinforced plastic components, providing a reliable and stable solution for various applications. Versatile 15.5ft Size for Multiple Applications: With a generous height of 15.5 feet, The retractable ladder is perfect for home repairs, facilitating roof maintenance, or accessing elevated areas within your living space. Additionally, it is a good ideal for RV owners, providing easy access for maintenance and inspections.