Scissor Blades

Information
The scissor blade, as explained by Satsuki herself, is a special weapon that was developed specifically to combat Goku Uniforms, and as such, can cut them. It resembles a giant half scissor. One is red, which is owned by Ryūko Matoi and the other is blue, which is owned by someone of the Kiryūin family. There are still things unknown about these blades and who made them. Ryūko's father, Isshin Matoi, was killed by this blade. The blade can expand into a longer sword (known as Decapitation Mode) or collapse into a normal size scissor half.