Manufacturer Part Number: SPR-H1002D/RET-HBK-ST, Material: Steel, Vintage Part: No, Modified Item: No, Brand: Supertech Neu, Non-Domestic Product: No Supertech Performance Dual Valve Springs, Steel Retainers and Keepers Kit for the Honda & Acura B Series VTEC B16, B18 Engines - 70lb. Will Fit Honda & Acura B16, B16A, B16A2, B16A3, B17A, B18C, B18C1, B18C5, B18C6 Engines Type: Dual Valve Spring Items Included: Valve Spring, Valve Spring Retainer Honda S2000 Felgen Supertech 70lb Dual Valve Springs Steel Retainers Keepers For B16a2 Honda