... attach to. 2.Back and side mesh 3.standing stable Thanks for Looking HC-A5, wire mesh back shelving .When you put ... enouth ,OK,you also can put them on the back mesh by hooks.If this aslo not enouth,OK,we ... only this ,some shorter shevles are avalible attahce to back.As it is double-sided, also Wide 1800,so ... 4 tier with 12 shelves .2.Back and side are 50x50mm grid mesh.3.Knock down structure .4.size ...