This property defines the Unicodes which belongs to Latin Extended E block
Characters like ꬰ,ꬱ,ꬲ, etc. are listed under Latin Extended E Block.
61 Characters are present in Latin Extended E Block starting with the Unicode point U+AB30 that represents the character ꬰ.
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.