... for black,golden,silver,red,blue,,green color. Description:magnetic stripesModel:magnetic stripesMagnetic Characteristics ResolutionUA3:more than 70 percents UA2 Erasure UA4 ... more than 6 boxes pile up, far away from the magnetic field. Handle with care, avoid fierce vibration, and keep off ... sun and rain, far away frommagnetic field in the transportations. Magnetic Stripes