Application The: The RC spark plug is suitable for car models powered by 5%-40% methanol fuel oil, directly replacing damaged parts Steel material: The Spark plug users are made of steel, safe, strong and durable Easy to install: The spark plug has a unique structure design, exquisite workmanship, easy to install and disassemble Lightweight and compact: The N3/N4 Glow Head spark plug is light and compact, easy to start, easy to store and carry, very practical Excellent starting performance: The engine spark plug is an important accessory for methanol fuel oil vehicles, providing excellent starting performance Feature: 1. Suitable for car models running on 5%-40% methanol fuel oil, directly replacing damaged parts. 2. Spark plug users use steel material, which is safe, strong and durable. 3. An important accessory for vehicles running on methanol fuel oil, providing excellent starting performance. 4. Unique structure design, exquisite workmanship, easy to install and disassemble. 5. Lightweight and compact, easy to start, easy to store and carry, strong practicability. Specification: Item Type: RC Spark Plug Material: steel Color: silver Height: approx. 17.2mm / 0.68inch Width: Approx. 8mm / 0.31inch Voltage: 1.3-1.5V Quantity: 4pcs (2pcs N3, 2pcs N4) Application: suitable for cars driven on 5% -40% methanol fuel oil Fitment: suitable for Redcat HSP methanol engine Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.