A simple one-step installation into the headgear tube, A telescoping coaxial spring designed to allow for enhanced patient jaw opening, A comfortable stainless steel mechanism that does not bow out into the cheek, Low spring stresses to give the Forsus spring a longer, more fatigue-resistant life, Open spring design to facilitate good oral hygiene, One appointment installation, chairside, with no lab work required, Independent left and right components, install only one side if desired