That's pretty slick! I'll have to check those out! Thanks.They are ‘locker slides’ just like truck slides…..because they are. The yellow levers on the large slides fully lock at 3 positions - fully closed, mid-way and fully open. These are 500 lb rated and are super-smooth. Nothing moves once they are locked. And the carrier shelf is a 40” 2x10.
Now the parts bin slides using the Hart stacker boxes are only 200# rated. They still lock, but definitely more play in those.