Develop a slender retractable gel pencil with a satin taupe plastic barrel, elongated narrower upper sleeve, subtle shoulder ring and a short rounded gel core.
Preserve the reference product's proportions, finish and visual color character while keeping all product surfaces completely blank.
Match the selected reference visually during prototyping; finalize shade, payoff, hardness, tip durability, cap fit and formula with the manufacturer.
Brand names, product names, logos, original packaging copy and certification marks are absent from all generated packaging.