Magnetic Pencil Pro

1:material: aluminum alloy / paint, 68430-130 mah 5V/0.2A 0.48 H,2. charging port: micro charging port, 1.5mm POM replaceable pen head3. functions: ipad tablet dedicated (after 2018) system 12.2 and above4. Pen head diameter 1.5mm * pen length diameter 8.9mm * total length 167mm5.size?210*60*21mm weight?73.2g