Freemax M pro 2 tank in CRC version is a new member of M Pro family. The Mesh Pro 2 Tank has 3 steel balls on top cap, so it enhances friction You will enjoy a leak-free filling with the delicate design. The Mesh Pro 2 Tank uses COILTECH 4.0. The SS904L M Mesh series coils provide you with the best vaping experience and long lifespan.