1. Lightweight smooth-rolling stair climber cart: experience effortless mobility with our innovative stair climber cart with six slip-resistant 10.2 cm wheels. designed for versatility, it glides quietly over grass, cobblestones and concrete surfaces. perfect for transporting heavy loads, this reliable tool increases efficiency and provides smooth navigation on stairs and uneven terrain. 2. No assembly required: this foldable chair is designed for comfort and folds in seconds for easy storage in your trunk or closet. its compact size saves space while offering comfortable seating. open dimensions: 47 cm D x 47 cm W x 97 cm H; folded dimensions: 8.9 cm D x 41.9 cm W x 70.9 cm H. ideal for outdoor activities or indoor use. 3. Enhanced stair-climber dolly: discover the strength of this stair-climber hand cart with a reinforced aluminum alloy frame, 2.1 cm diameter high-strength steel tubes and a 0.2 cm base plate. weighs 3.9 kg and supports up to 158.8 kg on flat surfaces and 68 kg when climbing. the included elastic cord adds stability for your load, making it a reliable choice for your transport needs. 4. Foldable stair-climber handcart: simplify lifting tasks with our foldable stair-climber handcart. it folds in seconds for easy storage and transport. perfect for shopping, travel and daily office use. this versatile handcart is designed to navigate stairs with ease while providing comfort for all your transport needs.