The GAN 249 V2 M 2x2 is magnetic version of the GAN 249 V2. It comes magnetized straight from the GAN factory.
The GAN 249 was the first massively produced 2x2 from the hugely popular cube maker. They tested the market with a preliminary version of the 249 in late 2017. Using feedback from those limited items, they made upgrades to produce a high quality 2x2 that is going to make many cubers very happy.