The Acroball 4 is a multi-pen from Pilot that uses Acro hybrid ink. This is a highly regarded multi-pen that is known for its excellent ink and relatively slim body. Like the other Acroball pens it has a “sneaker grip” which has a high-traction sneaker-like pattern that is very comfortable to hold.
The Acroball 4 uses a slim multi-pen refill, of which Pilot makes many. One popular choice would be the Pilot BVRF-8F.
Pilot Acroball 4 4-Color Multi-pen Information
| Street Price | Check Price |
| Manufacturer | Pilot |
| Pen Type | Hybrid |
| Rating | |
| Barrel Color | Light Blue, Black, Clear, Clear Green, Clear Blue, Clear Pink |
| Barrel Material | Plastic |
| Body Diameter (mm) | 14.0 mm |
| Grip Color | Light Blue, Black, Green, Blue, Pink |
| Grip Material | Rubber |
| Grip Diameter (mm) | 13.0 mm |
| Country of Origin | Japan |
| MSRP | $6 |
| Still Sold | Yes |
| Similar To | |
| Refills | |
| Capped? Retractable? | Retractable - Slide Button |
| Clip? | Plastic |
| Weight (g) | 15 grams |
| Refillable | Yes |
| Ink Color Shipped | Red, Blue, Black, Green |
| Writing Sizes | 0.7 mm |