Riser height 7 3/4'', B4 starter kit with connectors and top extra riser hook straps plus one 2 step extension with connectors: # of steps / risers 6/6 & 6/7, Floor to Floor stair heights: 46'' to 48" (6 risers) & 53'' to 56 " (7 risers), Horizontal Run 65", All connecting fasteners with Allen key, parts list and assembly picture instructions included. Package Sizes & Weight 5"x14"x 32", 35 lbs. + one (5''x 7''x 26'' 15 lbs). American customers pay in US $. (no sales tax). All payments including with credit card mare made through Shopify/PayPal.