Thank you for viewing. This is a "Mercedes-Benz speaker mini emblem." It is made of aluminum and measures approximately 8mm (height) x 4.6cm (width) x 1mm (thickness). It is a set of 4 pieces and comes with double-sided tape. ※ The installation example (image 3) is for an emblem from another company. (Can be used for things other than speakers) [Shipping] We will ship via "Yu-Packet Post mini." It will take 2-5 days to arrive after shipping. We will cover the shipping costs. (Post-in/Tracking available/Anonymous shipping/Warranty included/Delivery on weekends and holidays)