Front spark plugs for Sierra from 2007 to 2013, used, clean

For sale, front spark plugs for GMC Sierra models from 2007 to 2013, first-grade Taiwan quality, clean and fully functional, all in perfect condition—just install and go. The price is 600 SAR, and the buyer covers shipping costs. Delivery available to Dammam, Khobar, Dhahran, Qatif, and Ras Al-Khair every Tuesday. For inquiries, WhatsApp. Note: Please, those living outside the Eastern Province, do not suggest cash on delivery, sending money after receiving, or saying you don't know me and how to transfer payment. Send someone you know in the Eastern Province to receive it, or the payment must be transferred first before shipment. We thank God we have legal channels in case of any dispute, and God willing, I have no disputes with anyone. Anyone who receives an item they didn't request, wasn't installed, or has an issue can return the product and will get a full refund including shipping costs. People have tested me on this site and found me trustworthy as I keep my word.