Hidden parking sign car parking number sign

Product name: Multifunctional parking sign
Size: about 14 * 5.5 * 3 cm
Material: Alloy + ABS
Features: stop sign, aromatherapy, safety hammer, a multifunctional mobile phone holder
Hidden parking sign, easy to switch the roller number,
Window breaking safety hammer, quick break window, can be used underwater, break window easily
small volume,