Riser height 6 7/8'', P10 starter kit with connectors and top extra riser hook straps plus one 2 step extension with connectors. # of steps / risers 12/12 & 12/13, Floor to Floor stair heights 80" to 84" (12 risers) & 87" to 91" (13 risers), Horizontal Run 137". All connecting fasteners with Allen key, parts list and assembly picture instructions included. Package Sizes & Weight 5"x14"x 72", 66 lbs. + one (5''x 7''x 26'' 17 lbs) American customers pay in US $. (no sales tax). All payments including with credit card mare made through Shopify/PayPal.