Build trial

[CrazyGuy108]

Please follow this format here:

Minecraft name:

What do you like the most about redstone?:

What's a thing you have made which demonstrates redstone knowledge?:

What does the thing do?:

Image/s and/or video/s of the device, from imgur.com or youtube.com:

Do you agree with the rules?:

(You forgot "Minecraft name" and "What does the thing do?")
https://forum.openredstone.org/showthread.php?tid=4

Accepted  (he edited the post)