HEAVY DUTY BAR BRACES FOR CANOPY 1 3/8 POLE DIA ARE USED FOR STRUCTURE TO HELP THE FRAME TO NOT BEND EASY FOR HEAVY WIND BUT FRAME NEEDS TO BE SECURED VERY GOOD THIS HEAVY DUTY BRACES IS 3/4 X 36" LONG. PACK OF (6) 3/4 X 36" LONG BAR PLUS 2 CLAMP EACH BAR FOR 1 3/8 POLE