... Visual LCD display with high definition flash diffusers *4 colors adapter RF 550 Series Led Light FlashBrief Introduction Travor Brand RF550 ... the convenience of reading and operation 7. Eight diameters of adapter rings for alternative use 49mm,52mm,55mm,58mm,62mm,67mm,72mm ... ring head x 12.Power control with LCD display x13.Adapter rings x 8 49mm,52mm,55mm,58mm, 62mm,67mm,72mm,77mm4 ...