TOYSAGO 100 Pcs 7.2cm Foam Darts for Nerf N-strike Elite Series - Nerf Dart Refills Nerf Gun Bullets Compatible with Most Nerf N-Strike Elite Guns. Quantity: 100 Pcs, Color: Navy Blue Made with Soft Sponge Plastic Material and Soft Round Head Safety: Very safe soft bullets which can also be launched to far distance It works for Nerf N-strike Elite Series and Most Nerf Guns that's Compatible with 7.2 cm Bullets When fired out, the bullet can make awesome whistling sound.