Take the popular Humbler posture trainer and add an electro twist! The new Hyena posture trainer forces you into a kneeling position and connects easily to the Coyote 3.0 Estim Box. Essentially an electro humbler device.

Featuring detachable 'wings' so can be used as a ballsack electro device on its own, 3 different size holes for your nuts (That can be mix and matched for the perfect size for over 6 options preventing pull out) and adjustable crushing section underneath its three-channel designs gives plenty of options for connecting to your device.