This is an M16 standard adjuster bolt (for mannequin heads). It's designed for setting up and displaying mannequin heads, and the base provides stability. Product Details • Screw Standard: M16 • Total Length: Approximately 15cm • Base Diameter: Roughly the same diameter as the rounded bottom of a plastic bottle. • Condition: Unused / Stored at home Pricing • When purchased with a mannequin head: ¥2000 • When purchased separately: ¥2500 Notes • Designed specifically for mannequin heads; not suitable for general furniture, etc. • Being a metal product, there may be some minor scratches or scuffs. • Please confirm the size before purchasing.