This clip is 16mm long. They do another very similar looking clip which is 22mm long. The clip is commonly used for boot and tailgate linings.
10x Audi Boot & Tailgate Lining Metal Trim Panel Clips- Interior Trim Clips
10x Audi Boot Tailgate Lining Metal Trim Panel Clips- Metal Interior Trim Clips
QWORK® 10X CV Boot Clamp, Adjustable Axle Boot Clamp, Stainless Steel, 20-50mm / 50-120mm
10x Audi Plastic Nuts- Unthreaded 4mm diameter hole Engine Undertray Splashguard
VW AUDI BOOT TAILGATE TRIM PANEL LINING UPHOLSTERY METAL SPRING CLIPS INTERIOR
