trial frame 1.grey colour with different PD ranges. ... .high quality but low price optical trial frame* Feature1, grey color, the frame temple is adjustable2, PD adjustable range:(10specifications ... ) 52,54,56,58,60,62,64,66,68,70;3, alloy material;4 ... . trial frame set, 5pcs each case5. net weight 0.1kg ...