The jumbo push pins are made of stainless steel metal to ensure sharpness, durability, and long-lasting use. They have a 0.5" diameter plastic head. These large size pushpins feature a strong 0.45" inch ground steel point and have a flat head for easy placement and removal. They come with an accompanying lightweight plastic container for storage. These pushpins are versatile, suitable for tacking documents, fastening papers, photos, and message notes on walls, bulletin boards, cork boards, calendars, foam boards, and poster boards. The assorted colors of the plastic heads add fun to your work environment, yet the plain design maintains professionalism. They are perfect for marking locations on maps and decorating walls and calendars. Giant colored pins make a perfect addition to your thumbtack office accessories. Each pack contains 25 push pins.