1 Unique design wood color design for the elderly suitable for most 5/1/0 threaded ink cartridges Tube-shaped battery 900mah variable voltage suitable for most 510 threads2 Threaded stylus charger craftsmanship impeccable performance and reliability A power supply optimized for your rare viscosity It can a perfect power supply under any conditions3 Quick Charge Suitable for most 510 threads durable After being fully it will automatically exit charging4 Safety Built-in over-voltage protection over-current protection over-charge protection and short-circuit protection to charging safety5 Applicable to Applicable to any This is also an impeccable gift for Father's Day a gift for lovers family boyfriends and friendsBattery capacity 900MAHHow to Use clicks to turn on/off and three clicks to through Low green Medium blue and High red power MaterialABScolourRed Wood colorPackage Contents1 x 510 thread penOnly the above package content other products are not includedNote Light and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is +/1-3cm