This GARRISON ring range for the Composi-Tight 3D Fusion system comes in three references, each identifiable by color and suited to a specific clinical situation. The FX400 (blue), the shortest, features Ultra-Grip retention extensions that anchor it securely on short or malpositioned teeth, and it holds in place even over a rubber dam. The FX500 (orange), taller, is designed for typical molars and can be stacked directly over a blue ring already in place thanks to Tru-Stack technology, making MOD or multi-surface restorations easier. The FX600 (green), with its extended length, is the first wide-opening separator ring on the market, designed for very wide preparations or missing cusps, where a standard ring struggles to achieve good separation. All three versions share Soft-Face silicone tips with reinforced marginal ridge anatomy, for better contact point contouring. Sold in packs of 2, these rings cover the full range of situations encountered in posterior composite restoration with the GARRISON sectional system.