“Robust” and “firm” are the impressions for ordinary SPM frames.  However, this new model is very flexible in spite of being made only from the SPM material.  Three unique cable lines, which are helically rolled with extra fine SPM wires, bring flexibility and they can reduce stress by putting on and off a frame.  Those spiral lines are produced in the same way as cable temples.

MI-0958

55□16-140

MI-0959

51□18-140