BOROLA 100pcs 7.2cm Refill Bullet Darts for Nerf N-Strike Elite Series Blasters Kid Toy Gun - Yellow They are made of soft sponge plastic material and soft round head. Material: Plastic + Foams Size: 7.2*1.3cm. Quantity: 100pcs Color:Yellow. All Darts have been upgraded to the new perforated warhead, the damage to a minimum. More Darts match, please search "BOROLA" on Amazon.