Magnets-Locking - Magnets in Gans 356 Air SM will not drop,and their positions will be more precise with the Magnets-Snap-On design.With the use of 3mm 2mm magnets,the handfeel will be more stable and more comfortable. PS:This design is brand new for the Gan 356 Air SM Born with magnets - Magnet Positioning system structure--There are 48 magnets in total in the Gan356 Air SM.The whole cube weighs only 76 grams,which is almost the same as the Air and Air UM. World-First honeycomb contact surface -The innovative world-first honeycomb contact surface is designed to make lube equally spread on the contact surface,resulting in a very smooth and stable handfeel,and a longer life-span of the gan 3x3 cube. Higher accuracy scores - The IPGv4 is manufactured by injection molding Using both the ABS and the core axis screws.The core axis screws are accurate with a diameter of 1.9mm 0.02mm.To adapt to the precisely-designed GES v3,the screws must be more stable.and more vertical to the neighbour axis screw.IPG v4 has larger turning space,resuting in better corner-cutting performance. Gan Elasticity system V3 - The GES is comprised of 3 components:GAN nut,spring,and spring track.The GES v3 is more tunable and adaptable,meaning that you can extend the corner-cutting ability of the cube.