They're pegboard hooks. They hold stuff up on pegboards. Had one or three of them break on me. Nothing to get upset about; its to be expected. The upper tab that inserts into the pegboard seems to be the weak point. Tends to snap off on a few of them. Luckily, Out of Darts sells them in a decent quantity. Recommend grabbing 2 packs for a 8' x 4' blaster display wall.