Wakaisangyo Board Anchor [32-A416] Approximately 12 pieces [12 packs] 〈For gypsum board walls and hollow walls〉 ※※I'm selling various items※※ ★Easily attach fixtures to walls with a hollow structure where screws and nails cannot be used! Applicable board thickness (mm): 10-16 Drill diameter (mm): 9 ●Stored, unused item. ●Please refrain from purchasing if you are sensitive to such things. Thank you for your understanding. m(_ _)m