This mod adds 24 new carpets, including: a gold lined version of every original carpet colour (16 carpets) 3 Unique Carpets: Grayscale, Rainbow, 4k 4 Special carpets: Bounce Carpet: Drastically increases jump height when standing on, does not negate fall damage. Speed Carpet: Trapped Carpet: Will damage and slow entities when walked on, also destroys dropped items, similar to a cactus. Blocker Carpet: Acts as a wall to mobs, but lets the player walk right over.
This mod also adds the 4 item, the K item, and the 4K item. The 4k item can be used to craft a 4K carpet, which also awards and advancement. Yes, it's a reference to the song.