Size:Ball diameter: 0.3cm / 0.13inch ; Total length: 1.5cm / 0.59inch.Material:plastic round heads and steel needle points;these push pin has a small ball in the top to protect your finger as well as can catch your eye.These sharp map tacks can be used to hang travel maps, posters, art, tapestry, foam tiles, memos, photos, pictures, canvas, Halloween/Christmas ornaments, laminates, party decorations, wedding decor, papers, letters, messages, flags, wallpaper, schedules, reminders and notes. Also can be used on foam, map board, cork board and cubicle walls.you can apply it at home, office, school and so on; Small size with a box packaged is convenient to carry in bag that you can bring a box of it in traveling. These cute map tacks can be used to mark map locations, points of interest or travel routes, sales territories, shipping routes, franchise locations and DIY art craft.Package include: come with 500pcs of map tacks pins with blue small round ball on the top; Packed in a small reusable clear container case to keep your desktop or your desk drawer organized. Easy to store and use, these push pins are no longer scattered. Make your desktop looks neat.