Flexors are special deformers designed for use with rigid skinning. They provide various types of deformation effects that improve and enhance the effects provided by rigid skinning. Maya includes five types of flexors:

• Joint lattice flexors provide smoothing effects around joints. They are based on lattice deformers.
• Bone lattice flexors provide smoothing and bulging effects around bones. They are based on lattice deformers.
• Joint sculpt flexors provide rounded deformation effects around joints. They are based on sculpt deformers.
• Bone sculpt flexors provide rounded deformation effects around bones. They are based on sculpt deformers.
• Joint cluster flexors provided weighted deformation control around joints. They are based on cluster deformers.

For more information on creating flexors, see Create all types of flexors.