Pocket size: 5.2 * 2.64 * 0.75 inches, no manual. It allows you to carry it easily. the USB design allows you to use it at school, in the office, at home and when travelling. You can use it anywhere you like This LED nail light heals your gel nail polish with low heat, is painless and protects your hands. If you think this nail light is a bit small for your hand, we recommend treating your thumb first and then the left 4 nails. It stores space for you and the mini UV lamp is easy to carry and fits easily into your handbag. You can also place it on your desk for a leisurely DIY manicure while reading or working. Press the on/off button to cure for 45 seconds, long press for 1-2 seconds and 60 seconds, this setting is easy to use even for nail art beginners.