Nerf says it literally built 1,000 different darts to get the range, accuracy, and safety it wanted. The integral nub at the back. If you squeeze it, air comes out the hole.

Initially the N1 darts themselves will sell in a pack of 20 for $5 or a pack of 10 for $3. Comparably though, a pack of third-party darts that power Nerf's Elite blasters cost $9 for 100.