Fills in the diameter which in the air soft gun launches is 4.5 mm /6 mm /8 mm or other specification pellet,

By the plastic, the glass or the metal make,

Weight between 0.12 g to 1 g, 6MM caliber electrically operated air-gun commonly used 0.2 gram,

0.25 grams these two kind of specifications, Aggravation 0.3 g,

the 6MM caliber air sniper's rifle use is preciser,

and aggravates bullet,

Common 0.36 g, 0.4 g, 0.43 g, In addition has contains pigment's paint ball(after projecting, will suffer hit pigment will release, will indicate is hit)

And fluorescence ball (after illumination equipment illumination hidden place will send out weak ray,

after darkness when will fire will leave behind a like light ball path) and so on special BB ball.