This is a pack of 32 metal hair pins with rounded ball tips, each about 3 inches long, from Magic Collection. The rounded ball end is designed to slide into hair without the scratching or snagging that a sharp-tipped pin can cause against the scalp.
They're a basic styling accessory for sectioning, pin curls, finger waves, and securing updos, and work on both long and short hair. The pins come in a black finish. As with many mass-manufactured accessory packs, packaging design can vary slightly between production runs even though the pins themselves stay the same.