The Composi-Tight Original G-Rings provide the required amount of tooth separation and hold the matrix bands securely in place while the restoration is performed. Made of polished stainless-steel, G-Rings can be autoclaved for repeated use. Hardened spring steel allows for easy placement with rubber dam forceps. G-Rings come in two tine lengths: Standard length is used for class II restorations; Long length allow overlay of rings for MOD or multiple tooth restorations. Burnished ends grip teeth at the gum line, keeping rings securely in place.