The Largo™ PEEK Posterior Lumbar Interbody Cage (PLIF) was developed for posterior stabilization of the lumbar spine. These cages feature a convex bullet nose design and an axial void designed to contain autograft material. The subject device is made in various lengths and designed with angular teeth to allow the implant to grip the superior and inferior end plates to provide resistance to expulsion. The devices range from 7mm to 16mm in height, 23mm to 37mm in length, and from 9 to 11mm in width.