When you're ready to make your Nerf battles bigger than ever, gear up with Nerf Mega XL blasters, featuring the largest Nerf Mega darts ever! And when these monster-sized Nerf Mega XL foam darts fly through the air, they make a whistling sound. The competition will see and hear them coming -- and will know that you're in this battle to win big. This refill pack includes 10 Official Nerf Mega XL whistler darts. 

For ages 8+.