This is our most popular biodegradable bb.  The .20g BioShot bb is the perfect all around weight for distance and accuracy in Airsoft guns shooting to about 380 fps.  If you are shooting close to 380 fps and are having trouble with too much hop, you may want to move up to the .25g bb. 

Each 5000 rounds come in UV resistant-reclosable bags.  This gives them a longer shelf life along with the convenience of a reclosable bag so your bbs end up where you want them instead of on the floor.

These bbs are the best quality that we have come across.  Highest precision is roundness, weight, size and polish.  We have tested these bbs against normal plastic bbs and they perform as well if not better.  Plus they are bio-bbs which make them great for the environment.  For more information you can go to the BioShot website.