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With the balusters prepared, it's time for installation. First, slide the decorative plastic foot (without the bolt exposed) onto the bottom of the baluster. Carefully drop the bottom of the baluster into the pre-drilled bottom hole (with its rubber insert), and simultaneously guide the top of the baluster into the corresponding top rubber cap in the handrail. Once the baluster is in place, you can begin the 'twist' part of the system. Insert a 2.5mm Allen wrench (provided in the kit or purchased separately, such as an Eklind brand) into the side of the plastic foot. Twisting the Allen wrench will spin the nut inside the plastic foot, causing the threaded bolt to extend downwards. This tightens the baluster vertically between the top and bottom rails. Continue twisting until the baluster is snug and plumb. Once tight, slide the decorative plastic foot down to cover the nuts and Allen screw. Ensure the baluster is perfectly straight before fully securing. Repeat this process for all remaining balusters.