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The Famous OTR. Hard To Buff marker is now available with a 10mm round nib for a wide range of stylistic possibilities. Filled with a very strong alcohol based, deep black ink. It is instantly waterproof. The ink is also fade proof. It’s drippy, dirty, and really hard to buff. The Hard to Buff marker features a great pump action system. Easily refillable with OTR Hard To Buff Ink, and replaceable 10mm nib. This marker is only made in black.

Hard To Buff
•Instantly Water Proof
•Long Lasting
•Pump system makes ink flow like crazy