The Hataraku Saibou U-1146 Premium Chokonose figure captures a compact, adorable rendition of the character in a glossy souvenir pose. The figure stands about 120 mm tall, with a chibi-styled proportion that emphasizes large head and small limbs, typical of the chokonose line. Painted with a clean white and soft pink palette, U-1146's uniform details are crisp, including tiny armor-like plating on the shoulders and the distinct fin-like ears. The face features oversized, expressive eyes with a gentle smile, conveying a calm, determined personality. Subtle shading across the suit highlights reveals of folds and muscles, while a translucent base provides stable support without drawing attention away from the figure. The overall finish is smooth, with high-contrast lines and pin-spot highlights to emphasize the character's energetic charm.

U-1146 appears in the Hataraku Saibou universe as a steadfast member of the cellular defense squads who patrol the body's interior to keep it safe from invading pathogens and misfiring signals. The figure's character concept reflects a disciplined yet curious unit, always ready to engage in small, everyday missions that reveal the teamwork required inside the bloodstream. In the series' world, U-1146 forms bonds with other cells, balancing duty with moments of lighthearted humor as they battle cluttered channels, warn allies of danger, and repair minor damage to tissues. This narrative core emphasizes vigilance, loyalty, and the tiny acts of bravery that scale up to protect the whole body, a theme echoed by this stylized collectible.