Leere Box With a practical click system: Stacking the FixTainer is made possible with the practical locking system — for easy transport and a tidy workspace. Everything at a glance: Thanks to the transparent lid and clear compartments, there is order in the workshop and on the construction site — clarity pays off and causes less nerve-wracking search for the right dowel. High quality mounting box with carry handle: Sturdy and durable with good portability - for resealting and refilling.