High-quality 3D assets at affordable prices — trusted by designers, engineers, and creators worldwide. Made with care to be versatile, accessible, and ready for your pipeline.

Included File Formats
This model is provided in 14 widely supported formats, ensuring maximum compatibility:
• - FBX (.fbx) – Standard format for most 3D software and pipelines
• - OBJ + MTL (.obj, .mtl) – Wavefront format, widely used and compatible
• - STL (.stl) – Exported mesh geometry; may be suitable for 3D printing with adjustments
• - STEP (.step, .stp) – CAD format using NURBS surfaces
• - IGES (.iges, .igs) – Common format for CAD/CAM and engineering workflows (NURBS)
• - SAT (.sat) – ACIS solid model format (NURBS)
• - DAE (.dae) – Collada format for 3D applications and animations
• - glTF (.glb) – Modern, lightweight format for web, AR, and real-time engines
• - 3DS (.3ds) – Legacy format with broad software support
• - 3ds Max (.max) – Provided for 3ds Max users
• - Blender (.blend) – Provided for Blender users
• - SketchUp (.skp) – Compatible with all SketchUp versions
• - AutoCAD (.dwg) – Suitable for technical and architectural workflows
• - Rhino (.3dm) – Provided for Rhino users

Model Info
• - All files are checked and tested for integrity and correct content
• - Geometry uses real-world scale; model resolution varies depending on the product (high or low poly)
• - Scene setup and mesh structure may vary depending on model complexity
• - Rendered using Luxion KeyShot
• - Affordable price with professional detailing

Buy with confidence. Quality and compatibility guaranteed.
If you have any questions about the file formats, feel free to send us a message — we're happy to assist you!

Sincerely,
SURF3D
Trusted source for professional and affordable 3D models.

More Information About 3D Model :
A professional-grade stair-climbing hand truck, also known as a star-wheel trolley or tri-wheel dolly, represents a specialized variation of manual material handling equipment designed specifically for navigating vertical obstacles such as staircases and curbs. This industrial tool utilizes a unique rotating wheel assembly, typically featuring three wheels on each side arranged in a triangular configuration. As the operator pulls the truck up a riser, the assembly rotates, allowing one wheel to maintain contact with the tread while the next wheel pivots over the step's edge, significantly reducing the physical exertion required to transport heavy loads vertically. Constructing primarily from heavy-duty tubular steel or high-strength aluminum alloy, these trolleys feature reinforced load plates and ergonomic handles to ensure stability and user safety. Their versatility makes them indispensable in logistics, warehouse management, and residential moving sectors, where they are used to transport appliances, boxes, and heavy furniture. The mechanical advantage provided by the rotating wheel geometry minimizes impact stress on both the cargo and the operator's musculoskeletal system, making it a critical asset for occupational health and efficiency in multi-level environments.

KEYWORDS: stair, climber, trolley, truck, dolly, wheel, barrow, cart, transport, logistics, industrial, heavy, metal, moving, furniture, warehouse, loading, steel, delivery, manual