The tracer BB's we sell are bio and non bio versions. Please note that non bio are not allowed in outdoor locations!
The Tracer bb's we offer are from brands like Madbull, Nimrod and Tippmann in weights of 0,20 / 0,25 / 0,28 / 0,30gr Bio and NON-Bio.
The Madbull Tracer bb's are the most popular and only available in 0,20 and 0,25gr of which the white are Bio and the Red NON-Bio. Pay attention to this because the NON-Bio bb's are not allowed on every airsoft location even if they are indoor. The Tippmann Tracers are also NON-Bio.
The Nimrod tracers are biodegradable and have the largest range of weights.