Description Made of premium material, they are high precision and durable to use for writing or drawing. These products are perfect replacements for your pen tip, and can sensitively touch screen of phone or tablet. They are easy to install and use. Features -Color:Black -Material:Plastic -Size:2.70X0.10X0.10cm/1.06X0.04X0.04in - Made of premium material, durable and practical for long-lasting use. Practical design, easy to change the . - Smooth design, fluency for writing and it will not scratch screen. Suitable for most devices with touch screen, easily meet your different needs. - Small size and lightweight, easy to carry. Replacement caps, special for graphics tablet pen use. - These touch screen pen tips allows you to see exactly where your mark is being made, fitting for taking notes and drawing. - Replaceable tips increases longevity of your pen. Rugged and durable, each will last a long time Voltage Detection Chip: The power converter adopts intelligent voltage detection chip and intelligent LCD screen to realize real time voltage detection, protecting the battery and your electricity safety all the time. 8 Protections: The inverter features overcharge protection, overcurrent protection, overvoltage protection, undercurrent protection, short circuit protection, undervoltage protection, overheat protection and overload protection. Smart Cooling Fan: The heavy duty power inverter makes use of smart cooling fan which features excellent and fast heat dissipation performance to prevent overheating, as well as lower working noise, stable and precise output voltage. Devices Charging: The dual AC 110V outlets can charge laptop, fan, game console, for kindle, TV, DVD players, Christmas lights, etc. And the 5V USB port is ideal for fast charging for IOS, smartphone and other electronic devices. Wide Application: You can connect to a 12V/24V ( also support 48/60/72V) battery system to power your device in home or outdoors for emergency, outdoor activities or outage, the sturdy aluminum alloy is more compact and durable.