New pack of headlight bulb retaining mounting ring screws for your classic. Sold as a 16 piece set to do all 4 retainer rings. Compatible with these models with four headlight systems; 82 - 92 Camaro 77 - 81 Firebird and Trans Am 83 - 88 Monte Carlo , SS , Aero Coupe 78 - 88 El Camino 78 - 87 Buick Regal , Limited , Grand National , GNX 78 - 86 Cutlass 84 - 87 Pontiac Grand Prix