World's Smallest Workshop

Tiny Workplace. This miniature workshop fits in the palm of your hand. You can use an action to speak a command word while touching it. When you do, you and everything you are carrying instantly shrink to fit inside of the workshop and are transported into it. The interior of the workshop is effectively 20ft wide, 60ft long, and 20ft. high, housing two are two levels. It is filled with all sets of tools imaginable, including artisan's tools, a forge, an anvil and workbenches for various crafting tasks. There are a number of shelves, barrels and crates to stock materials in. While in the workshop, the time required to repair or craft anything is halved compared to working outside of this workshop. All tools, objects and items in the workshop that are a part of it, cannot be taken outside of it.   Only one creature can be inside of the workshop at any given time. You can exit the workshop and return to your original size by speaking the command word again as an action. The workshop has an AC of 15 and 20 hit points. If the workshop is destroyed while you are inside, you are immediately expelled and returned to your normal size but everything else inside the workshop is completely destroyed.