Evans UV2 features Evans patented UV cured coating. This process makes the coating completely consistent across the drum head. The curing process also increases the durability and prevents flaking chipping or general wear of the coating. This surface delivers excellent results for the brush player. Each head in this pack features 2 7mil plies coated and then cured. The curing process also increases the durability and prevents flaking chipping or general wear of the coating. This surface delivers excellent results for the brush player. This pack has the three most common sizes! MFSKU ETP-UV2-F UPC 019954284589