The Sidekick 100+ XL in green sits between a basic deck box and a full display case. Capacity is 100 regular double-sleeved cards with room left over for tokens, or a single commander deck sleeved in thicker inner sleeves with nothing to spare. Overall it measures 4.3 x 4 x 4 in.What separates it from a plain lidded box is the convertible system. The lid comes off completely and clips to the bottom of the base, which means it is not a loose object hunting for space on a crowded table. From there the box can be tilted through a range of angles, so the deck presents at a readable slope instead of lying flat. Powerful magnets hold it shut when it is closed.Green is worth choosing deliberately if you are colour-coding a collection. Once you own three or four boxes, colour is a faster index than a label, and green is the obvious home for a green-based commander deck or a Star Wars: Unlimited list you want to spot instantly.Consider something else if you carry two decks at once, in which case the Stronghold 200+ XL doubles the capacity, or if you want a UV-protected window for a signature card, which the Sidekick Pro 100+ XL Convertible adds. For a single sleeved deck that needs to look presentable on the table, this is the right size.