30 Novelty Square Cube Head Wood Push Pins or Thumb Tacks Decorative Square Map Tacks (30PCS) Made of woodHead Diameter is about 0.39 Natural wooden thumbtacks have extra long steel post point . Works on cork board, bulletin board or drywalleasily hang papers, posters, photos, memos, maps and more. Unique novelty design perfect for decorative push pin art. Can be easily painted to match any custom colors, good for thumb tack crafts.