These slingshot clay ammo is specially customized for us by a ceramics factory with selected high grade clay. They are produced specially for healthy and safe slingshot shooting. The ammo is produced in firing kiln with a temperature higher than 600 °C. No possibility to contain organisms inside. Using neither chemical for coloring,nor glue for glossing the ball.
It is quite cool if you shoot it as target. You will enjoy its crashing into ash.