This property defines the Unicodes which belongs to Arrows block
Characters like ←,↑,→, etc. are listed under Arrows Block.
112 Characters are present in Arrows Block starting with the Unicode point U+2190 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.