Full Slabs Fabric Mod 1.18.1/1.17.1/1.16.5 puts various types of slabs into Minecraft. If you frequently need slabs, you will now have more of them to use.

Before you apply this Cosmetic mod to the game, you should know the importance of slabs. They are known as blocks with strong resistance. Their function is to measure half a block in height. The game allows you to craft lots of slabs. However, these slabs can also spawn in a natural way in many Generated Structures.
In this mod, you will approach many vertical slabs and combined horizontal and vertical slabs. Therefore, your experience in slabs will be more enhanced. Not only that, but the mod also includes some KleeSlabs-like behavior. This allows you to smash every slab in half in a separate way.
You can apply Full Slabs to other mods because the new slabs in the mod can work with other common slabs. If there is an issue in the mod, you should report it to the author of the mod. If you want it to work with Sodium, you are required to install Indium. Also for your information, the mod will not functional with Optifine/Optifabric. If you are on version 2.0.0 or above, it also needs Micalibria to function.
Since the mod is for Fabric, the basic requirements are to install Fabric Modloader and Fabric API.
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