Ah The two sides of the drawer should be placed Hat and aligned with the guide Hole for balanced entry, as shown in picture. Al-Ad Drawer is for left side, B1-B4 Drawer is forth right side, please don't Putin mistake! AA If the installation of drawer is stuck, just dig the buckle as show in picture and then you can take out the drawer and put it again. ’ Complete WW We genuinely appreciate your purchase of our product.