Non-Adjustable: The tool is not adjustable and is best for low profile carpets, wide steel head for maximum grip on carpet. Positioning Tool: The teeth are angled forward to help grip and hold the carpet. They are not straight because the skirting boards are not designed to pull or stretch the carpet to remove wrinkles, it's just a positioning tool. Large and Comfortable Handle: Features a soft foam comfort grip, non-slip, easy to handle and pull. Construction: Lightweight aluminium and steel construction, high strength, corrosion-resistant. Size: Total 16-5/8 inch long, the head size is 4-1/8" x 4-1/16". This is a simple model, suitable for home decoration, not a professional model. QWORK