Free shipping and free returns for 30 days from buyers receipt of the order. Kit includes Phillips head drill bit for installing brackets and rail, 3/16" drill bit for predrilling holes for screws into studs, and for 7-12 foot sizes an allen key for tightening the internal splice. Set includes one (1X) handrail and two (2X) handrail brackets with mounting hardware for all sizes up to and including 6 feet. Set includes one (1x) handrail and four (4x) handrail brackets with mounting hardware and one (1x) internal splice (see last three photos) for 7-12 foot sizes. 7-12 foot rails will come as a two part rail with an internal splice Set includes one (1x) handrail and six (6x) handrail brackets with mounting hardware and two (2x) internal splice (see last three photos) for 13-17 foot sizes. 13-17 foot rails will come as a three part rail with two internal splices Set includes one (1x) handrail and eight (8x) handrail brackets with mounting hardware and three (3x) internal splice (see last three photos) for 18-22 foot sizes. 18-22 foot rails will come as a four part rail with three internal splices These handrail sets are made from powder coated aluminum to give a simple and elegant look that matches your modern decor. The handrails are made from 2"x1" aluminum extruded stock tube to allow for easy grabbing. Handrails are 3 9/16 inch deep by 1 inch high. High strength construction meets load requirements of 200lbs or more. Check your local zoning for any additional requirements