How long does the battery last, and how long does it take to charge?
2.5 hrs full charge via USB (wall adapter, laptop, or power bank). Runs 4–5 hrs.
What sizes of eraser refills are included, and how many come in the kit?
140 total: 40 large (5mm/0.2") for broad areas, and 100 small (2.3mm/0.09") for fine details.
Can this eraser handle very fine details without smudging the surrounding areas?
Yes. The small nib precisely erases tiny marks without smudging. Light pressure removes graphite cleanly – perfect for highlights and fine lines.
What is the advantage of the dual-motor design?
Both nibs stay installed. Switch instantly between broad and fine erasing – no holder swapping. Saves time and keeps your workflow smooth.
What's the difference between the metal and plastic holders? How should I use them?
Metal holder is durable for large-nib heavy erasing; plastic holders are lightweight for small-nib precision. Caps keep tips clean when idle.
How long does the battery last, and how long does it take to charge?
2.5 hrs full charge via USB (wall adapter, laptop, or power bank). Runs 4–5 hrs.
What sizes of eraser refills are included, and how many come in the kit?
140 total: 40 large (5mm/0.2") for broad areas, and 100 small (2.3mm/0.09") for fine details.
Can this eraser handle very fine details without smudging the surrounding areas?
Yes. The small nib precisely erases tiny marks without smudging. Light pressure removes graphite cleanly – perfect for highlights and fine lines.
What is the advantage of the dual-motor design?
Both nibs stay installed. Switch instantly between broad and fine erasing – no holder swapping. Saves time and keeps your workflow smooth.
What's the difference between the metal and plastic holders? How should I use them?
Metal holder is durable for large-nib heavy erasing; plastic holders are lightweight for small-nib precision. Caps keep tips clean when idle.