Quantity: 3 pieces Material: N3 oil spark plugs are made of high quality steel, which is durable, anti-wear and anti-corrosion, and prolongs service life. Perfect Size: N3 Hex Candle: 8mm, height: 17.2 mm, small size, easy to carry, does not take up space in the bag. Protrusion: Platinum/Iridium Overrun, replaces OS 8, HSP 70117 N3, Traxxas 3232X, Redcat 70117H. Applicable occasions: long-acting parts, suitable for 1/8 1/10 scale vehicles equipped with engines 4c 5%-40% nitro fuel, such as methanol cars, trucks, ships, planes, etc. Other features: under extreme engine loads, the top cowl structure ensures a perfect seal and the fuselage is treated with a special nickel plating to prevent oxidation and be more durable. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!