Space Engineers - Decorative Pack is a DLC for the game that brings all kinds of new decorative blocks to the game that can be used to bring a bit of flavor to your spaceships, space stations, and vehicles.
Bear in mind, most of the blocks that come with this DLC pack are only there for cosmetic purposes. They aren't meant to bring any new kind of functionality or even new game mechanics. That's why the developers marked the ones that are decorative and those that have some new mechanics or functionality so that players know the difference.
Space Engineers - Decorative Pack brings a lot of new content to the game. If players want to conduct some military drills or even make their own armor or weapons, they now have the Armory, a locker that is used to store all their tools, ammunition, and weapons. When it's time to sleep, there's the brand new addition of the Beds, which can store the inventory and toolbar of the players while they're offline and even keeps them alive, assuming there is oxygen available at all times. If something is needed to project your spectacular blueprints and important designs, there's the Console Block.
Need to relax after a long day of building advanced gadgets? Why don't you take a seat on your stylish new Couch? There is even the addition of the Desk and Desk Corner if you need to sit and come up with some new designs for your space station. Those of you that are in need of a brand new cockpit can use the Industrial Cockpit which features impressive visibility. Other additions are the Kitchen and the Planter, which are purely decorative, Lockers that can be used as storage units, and the Toilet and Toilet Seat, which can be used as seats.