Every non-utility configuration BlumSafe includes: two velvet-lined shelves and eight shelf support brackets, a base drawer with power connection, upon which the winders sit and from which they draw electricity, and a dual voltage 100-240V AC power adapter. You add winders and jewelry drawers as you configure the safe on our website. Since the winders are modular, stacking like Legos, you can add winders (and jewelry drawers) as you need them as your collection grows, and at this point, remove shelves to accomodate more winders or jewelry drawers.