BOROLA 100pcs 7.2cm Refill Bullet Darts for Nerf N-strike Elite Series Blasters Kid Toy Gun - White,Suction They are made of soft sponge plastic material.Glow in the dark foam and suction head. Material: Plastic + Foams Size: 7.2*1.3cm. Quantity: 100pcs Color:White,Suction. Darts stick to targets with suction power. More Darts match, please search "EC2BUY" on Amazon.