... airsoft BB airsoft BB, Bio-degradable 1) guranteed the most perfect Biological BBs ... model: GB4020BIO-I, 0.20g, 5.95+/-0.01mm, white; packing: 1kg/bag, 20bags/ctn.- model: GB4023BIO-I, 0.23g, ... 5.95+/-0.01mm, white; packing: 1kg/bag, 20bags/ctn.- model: GB4025BIO-I, 0.25g, ... : GB5032BIO-I, 0.30g, 5.95+/-0.01mm, white; packing: 1kg/bag, 20bags/ctn. -Carton size: 34X42x18 - For use ...