Answer:
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
The stack just might be sent all over. Full of what's new, yet it's nearly obsolete.
What can be swallowed, but can swallow you?
You can hold it without using your hands or arms. What is it?
Do you know what you can hold without ever touching it?
It can be cracked, It can be made, It can be told, it can be played. What is it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?