1900 x 0.40g high polished bb 
 
Longbow Bio BB Facts:
Longbow Bio BBs do not need to have any "special treatment"
Longbow Bio BBs will only start to degrade when they come into contact with nitrates commonly found in soil
We keep a sample from every batch that we import from our manufacturers and even those that are 4 years old are still showing zero signs of decomposition or change