[Adjustable Secure Armrest] This stand-up walker has an adjustable foam armrest that can be set from 40.3 to 45.5 inches. This helps seniors, the handicapped, and the disabled walk with a natural posture, reducing shoulder and back pain, and allowing them to walk safely. [QUICK AND EASY ASSEMBLY] You don't need tools to assemble it, and it doesn't require any tools at all [Safe & All-Terrain Anti-Skid Wheels] The stable upright rollator for seniors has an aluminum frame for safety and 10" front and 8" rear wheels for various surfaces such as concrete, grass, tiles . The 360° swivel anti-skid wheels make maneuvering easy. [Easy Storage and Indoor/Outdoor Use] The safe and compact walker has a dual braking system that locks the rear wheels when sitting. Its extra compact design allows for easy storage and transport, as it can be folded and pulled down twice. [Specifications] The rollator's backrest height is adjustable for comfort and to avoid back problems. It has a removable shopping bag and cane/umbrella holder for convenience. It is 29.5" long, 24.6" wide, and 47" Height, with an 18"(L)x10"(W)x21.6"(H) non-adjustable seat. The frame is made of strong aluminum and can hold up to 300 pounds (136kg)