GOOFIT Metal Spark Plug Cap for 10mm Thread Spark Plugs GY6 50cc-150cc Dirt Pit Bike Brand New Metal Spark Plug Cap / Boot For Engines That Use 10mm Thread Spark Plugs. Screws On To Your Existing Coil Wire. Package:1 pcs Arrival within 1-2 days (Sold by GOOFIT and Fulfilled by Amazon) Arrival within 7-15 days (Ships from and sold by GOOFIT)