Acrylic nibs are one the latest additions to Arabic calligraphy tool box. They are strong and durable, very easy to clean and do not require any re-cutting or sharpening. They are expertly cut and produce beautifully crisp and sharp lines.
Mega wide nibs are easier to control without the handle (similar to kelani pens) as crafting the balanced qalam with mega wide nib and handle would put the handle too far from the pen's tip.
The surface of these nibs is polished to allow for some adjustments to ink flow by gently roughening up the nib with sanding paper (avoid the very tip of the nib). This will increase a surface area for ink and allow longer strokes on a single dip.