>>5764774Remember how the old towball pieces used to just hang loosely when they're connected? In 2014, Lego introduced a new family of parts that use the old ball size, while upping the friction. They're super useful in adding moving joints to your builds, because the friction allows the parts to hold poses.
The "mixel joint" term comes from the small Mixels sets (also introduced in 2014), cute creature builds that are cheap and reliable ways to obtain these joint pieces.
