The Ender Property is very similar to the ender chest but it's a Dimension let me explain. To get an Ender Property you need to craft it with 1 ender chest, 1 nether star, 1 heart of the sea, 1 shulker box, 1 totem of undying, 1 sponge and 3 netherite. Its shaped like a chest but it looks similar to the ender portal. It works like the ender chest if you open it you will get teleported to your very own 1000 by 1000 Dimension no one can come to unless you use the teleport command, in this dimension the ground would be end stone and the sky would be dark just like the end, you can build whatever you want, if you were to reach the end of your little Dimension there would be no barrier you would fall off into the abyss so its like your own end island no one can get to. Also no mobs can spawn there unless you make an iron golem, snow golem or wither, you cant make any portals in this Dimension, if you want to get out you have the end Property in your inventory so youd place it down and open it again to get out then youd be teleported to were you originally opened it. The appeal to the end Property is its basically a mobile home but it's very expensive.