This property defines the Unicodes which belongs to CJK Compatibility Forms block
Characters like ︰,︱,︲, etc. are listed under CJK Compatibility Forms Block.
32 Characters are present in CJK Compatibility Forms Block starting with the Unicode point U+FE30 that represents the character ︰.
Currently, as per latest version 15.0.0, Unicode supports 328 number of Block. Here are a few examples - Latin Extended E,Adlam,Aegean Numbers, etc.