The inner tray is very weak as is the handle. I've used these toolboxes for years but the latest ones have split within a few days of use. There also used to be plastic brackets and bolts supplied to hold a spirit level and hand saw to the under side of the lid but these weren't supplied either.
I have used these tool boxes for over 10 years and only just replaced the first one as I needed to pass the original back to the organisation which it belonged too when I moved jobs. Highly recommended, great bit of kit. Loads of room for everything.
Main chest, lid, metal latches, wheels and handle are sturdy considering the amount of tools and battery drills it carries around. The product is let down slightly by the thin plastic inner tote tray which starts to bend once you have your favourite drill bits etc in it and does not look like it will last long, the handle has already split on the one I purchased and will be in two pieces soon.