Stable characteristics, high reliability.Easy to install.Length: 7cm (2.7 inch)Metal Thread Diameter: 10mmHex Size: 5\/8inchModels: A7TCCompatible With: Fit for GY6 50cc- 150cc Scooter, Go Kart, Quads, Dirt bike, Moped, ATV, Buggies...etc.Fit for GY6 QMJ\/QMI157, QMJ\/QMI152 4-stroke engines.Fit for most Chinese , such as , Buyang, Roketa, Coolsport, , BMX, Kazuma, Sunl, AIM-EX, Baja, Panterra, , Stream Eagle etc,kindroad, Roketa ,Kandi, Jcl, , Redcat, Jonway etc and unlisted makes\/models.Compatible with the following spark plug and codes:for 4194for Brisk NAR14YCfor Brisk NAR14YSfor PZ7HCfor Z8for Z9Yfor IUF22for U22FS-Ufor U22FSR-Ufor T90for C7HSAcolour:SilverMaterial:metalPackage Contents:5 x Spark Plug A7TCOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.