Overview Image Gallery
Following the destruction of Atlas and The majority of the military, They were likely lost with the Kingdom.
The bolas consisted of a pair of balls containing Gravity Dust connected with a wire. When thrown, they wrapped around the target and the gravity Dust connected both ends, effectively restraining the target. Bolas could also be wrapped around a person's wrists, acting as handcuffs.
When the bolas was deactivated, the Dust inside became inactive, as well. This was shown in "A New Approach", when the purple glow faded after the bolases were taken off of Ruby's group.