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
VW AUDI BOOT TAILGATE TRIM PANEL LINING UPHOLSTERY METAL SPRING CLIPS INTERIOR
FIT AUDI BOOT TAILGATE INTERIOR LINING METAL TRIM PANEL CLIPS
10x Metal Trim Panel Clips for VW, 16mm Length. Boot & Tailgate Interior Lining
Koaudb 2Pcs Boot Struts Rear Tailgate Boot Gas Struts for Ford Focus MK2 Hatchback 2004-2012 Lift Support System 530N Gas Strut Heavy Duty Car Boot Tailgate Struts Replace #1684312, 4M51A406A10AB
QWORK® 10X CV Boot Clamp, Adjustable Axle Boot Clamp, Stainless Steel, 20-50mm / 50-120mm
