The DianSheng 8CM 3x3x3 is the world's first mass produced magnetic 8CM 3x3 speedcube, it turns very well and somehow still comes with an elasticity adjustment system. The extra CM beyond the 7CM one has a slight impact on fingertricks, such as resetting fingers during a U perm.
Other Posts

Why the 1x1x1 Cube is Actually Worth £8349.42
A documentary 3 years in the making. One cube....

New QiYi 3x3 Warrior M coming soon
QiYi have recently released a new magnetic budget cube which may be pretty groundbreaking. The new QiYi Warrior...

QiYi are releasing another clock colour (green this time!)
QiYi have recently announced that they will be releasing another QiYi Clock colour. QiYi currently offers three colours: ...