Released in mid 2024 the YJ EST is an experimental 3x3 released by YJ (best known for their line of higher order puzzles like the MGC 4,5,6 and 7). However, they're back into the 3x3 game with the release of the EST.
The EST is one of the lightest cubes on the market, YJ have achieved this by shaving pieces of the edges and corners and really cutting back on material used. For what reason? Well, to save weight, we're not to sure of any other reason.