NGC Standard Box for Slabs - SILVERNGC Standard coin slab storage boxes each hold 20 Standard (4. 3mm) coin slabs. Each box is made of durable plastic to ensure your slabs are properly protected. The boxes contain pre formed slots to prevent slabs from bumping into each other. NGC boxes are also made with indentations on the bottom and raised areas on the top to allow for easy stacking. **NOTE** Does not fit Coin World Slabs we sell, or The older NGC "Fatty" slabs. Features NGC logo in