a large proportion of containers are empty during return transport, which takes up a lot of space and increases freight costs. as the containers can be folded and stacked on top of each other , they offer considerable cost and space savings. they offer an alternative returnable solution to both rigid containers and oneway cardboardwooden pallet containers. very sturdy in relation to their weight and do not collapse during use. userfriendly, the storage boxes are 100 recyclable, as they are made entirely from plastic.