• Smart fingerprint unlocks the watch winding device, remote control command, intelligent winding.The outer shell is made of high-density pine wood piano paint, and the interior is a microfiber leather retractable watch pillow.There are 6 sizes and capacities available, the sizes are: 1 slot 18 × 22 × 20 cm / 7.1" × 8.7" × 7.9", 2 slots 18 × 22 × 38.5 cm / 7.1" × 8.7" × 15.2", 4 slots 26 × 22 × 38.5 cm / 10.2" × 8.7" × 15.2", 6 slots 26 × 22 × 48.5 cm