Ohto Pencil Ball 0.5mm Pen-Pen-Ohto-
Ohto Pencil Ball 0.5mm Pen-Pen-Ohto-Black-
Ohto Pencil Ball 0.5mm Pen-Pen-Ohto-Green-
Ohto Pencil Ball 0.5mm Pen-Pen-Ohto-Wine Red-
Ohto Pencil Ball 0.5mm Pen-Pen-Ohto-Yellow-

Ohto Pencil Ball 0.5mm Pen

£5.75

Ohto

The Ideas:

Soft Ink Roller Ball Refillable Pen - clips onto notebook

The Numbers:

Refill: 895NP (0.5mm Black ink) 
Size: Full length: 125mm Diameter: 7.8mm(max 10.5mm)
Material: Body: Natural wood, Taper: Brass , Knock: Brass, Clip: SK