This is my another new modification. Being the most superior than other Super Grip G3 series, i found it very good to spin with.

Full Specification:
Full name: Pilot Super Grip G3 Revolution Xero
Length: 18.3cm
Width: 1.02cm on the barrel
Weight: 14g
Type: Retractable
Cost: 300yen ($3.00)
COG: 2.03mm away from center
Pros:
Much heavier than Super Grip G3: Generation II
RETRACTABLE
More momentum
Balanced
Longer
Grips on both sides
Cons:
Um, it doesn't look cool?
