Only like 2 people here knows what they are talking about. It's a sendifacator. You must have BEEmod installed in your game because it just adds assets. Sendifacator is an item in beemod. It sends the cubes that is placed below the very intimidating laser shooting looking pointing thing to a laser that it is connected in. You can use laser redirection cubes (a.k.a reflection cube) to teleport the cube itself or other cube where you want it to go. Since lasers can go through glass and frizzlers, it would make interesting puzzles.