Moisture Proof Dehumidify Dry Cabinet Camera Lens Equipment Storage Dryer Boxs Feature: 1. The thickness of the moisture-proof box is 6 mm, and it is made of high-quality ABS environmental protection engineering materials, which is thick and compressive, and has strong bearing capacity. 2. It use electronic moisture-absorbing cards, which can be charged and recycled. The shell is made of ABS fire-retardant and flame-retardant materials. The moisture-absorbing agent is a transparent desiccant. Humidity indicator windows are about 15 grain color-changing silica gel, so as to observe the dryness and wetness and facilitate charging. 3. Shoulder strap buckle: It can be used with special shoulder straps, and the environmentally friendly and durable box is thickened, which is more sturdy and durable. 4. This drying box is widely used to store cameras, electronic devices, iPads, mini stereos, medicines, calligraphy and painting collections, jewelry collections, etc. Specification: Material: ABS environmentally friendly materials Outer Size: 28*21*20.5 cm/11*8.3*8.1inch(10L), 39*27*27.5cm/15.4*10.6*10.8inch (25L) Inner box size: 27*20*17.5 cm/10.6*7.9*6.9inch(10L), 37.5*25.5*24cm/14.8*10*9.4inch (25L) Storage volume: about 10L/25L Package includes: 1x Moisture-proof box 1x Inner bladder bag 1x Moisture-absorbing cards 1x Sponge pad 1x Shoulder strap 1x Password Lock Use of hygroscopic card The humidity in the working range of the hygroscopic card is kept between 20% and 50% (see the hygrometer on the box) If the hygrometer exceeds 55%, remove the hygroscopic card to charge. 1. Charge for about 6 hours for the first time, then charge for 2-3 hours later, and cool for 20-30 minutes. 2. Observe that the silica gel in the indicator window of the hygrometer changes from the original pink to dark blue, and then put it into the box to dehumidify