General description 6X N3 Glow Plug Spark is designed for 1/10 and 1/8 RC truck nitro engine parts. This glow plug is suitable for 4c engines using 5%-40% nitro fuels, enhancing idle speed and transition for improved performance. Technical specifications Item Model: N3 Size: 1.8 x 1.8 x 0.9 cm Material: Metal Color: Silver Package contents 6 x Glow Plug 6 x Gasket Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.