Factory Effex Standard Numbers (6" / Number 0) (Black) They all ride at Factory Effex and they put that experience into every product they sell. Every Factory Effex product is created from passion and pride, built to be the best. It&#39;s the only way they know how to do it.Basic numbers made from 4-mil vinyl.Perfect for frequent number changes.AMA, FIM and NMA legal.Sold individually.