【Anti-slip Pad and Sturdy Base】There is a silicone anti slid pad on the bottom to increase the friction. And the inside of the base is combined with a stainless plate to make it heavier. Both are designed to make it difficult to slide on a table.(please clean your table before) | 【Anti-splash Design Cleansing Case】We combine the bits holder with the drill bits cleaner which equipped Steel Wire & Nylon Brushes. It is so convenient and effective to clean the nail drill bits. | 【30 Holes】The size of the holes and the height of the dustproof cover are calculated precisely, which is suitable for all kinds 3/32'' nail drill bits. Hold your drill bits stably. | 【Transparent cover】The cover of the nail drill bits holder are made of high quality sturdy transparent acrylic which is more durable and beautiful. You can even display the nail drills bits while they are being covered.