Stacktech low profile organiser, self-aligning and nesting, the auto-lock mechanism activates when the box is dropped into place, the sliding switch unlocks the stack and indicates when it is ready for transport, the central latch provides quick access to tools, black high-performance polymer construction and a steel-reinforced clear lid, ip65, includes 10 bins and 4 dividers inside, nesting measurement 47 x 35.5 cm, dimensions 53 x 40.5 x 10 cm