I have 3 of these assortment boxes for larger electronic components in use. The material is stable and firm but elastic enough to withstand a fall from table height. The lid closes well and is sufficiently transparent to see the content. The 3 rear plastic hinges make a stable impression. The stackability is good, so you can carry more of stacked boxes. The article I can recommend. There are many times more expensive brand boxes which no longer endure. Price-performance ratio is ok.