Size for Bullets: Length: 7.2cm; Diameter: 1.3cm. These foam darts can be reused. Total 200pcs.All N-Strike warriors needed because you can never have enough darts in a battle. Manufacturered by LPVIE. It works for Nerf N-strike Elite Mega Series Blasters Toy Gun.If your kids are 5+ year old little boy this will be the best gift! Important Note: The head of each bullet is made of plastic so a little bit hard please dont shoot at people directly to prevent hurt especially do not aim at the peoples face to prevent injury to the eye. Made using soft sponge plastic materials and soft round head These foam darts is safety and high quality and durability.