Ergonomic Cigar-Toothbrush Dimensions

I have an AI-generated rendering of a cigar-shaped toothbrush that needs to move from concept art to factory-ready specifications. Your job is to study that single image and translate it into a full set of dimensional data that is:

• Ergonomically sound for an adult hand, with special attention to grip comfort, balanced weight distribution, and an appropriately sized brush head
• Optimised for wood as the primary material, factoring in machining tolerances and any grain-related stress points
• Complete enough for immediate import into CAD platforms such as SolidWorks or Fusion 360

What I will send you:
– The original high-resolution image
– A short note on the intended visual style

What I need back:
1. A dimensioned drawing (length, width, and height called out clearly) in PDF
2. The native CAD file ready for tool-path generation
3. A brief rationale (one page max) describing how each key ergonomic choice was met

Acceptance will be based on:
• Measured compliance with the three ergonomic priorities above
• Consistency with woodworking best practices
• CAD file opening error-free on my end

When you reply, outline similar wood-based consumer products you have dimensioned before and let me know your price and estimated turnaround time.