If you want drips you came to the right place. The Grog BPI (Buff Proof Ink) Squeezer has become the "go to" mop or squeeze marker for many street artists. The "high flow" Grog Squeezer BPI comes in 3 size options - 25mm, 10mm, and 05mm, depending on your technique or taste. Each squeezer is filled with the infamous Grog Buff Proof Ink. Buff Proof Ink is a highly permanent alcohol based "Death Black" color ink with a glossy finish.  

These markers are refillable with Grog Buff Proof Ink 200ml Refill.

Grog Squeezer with Buff Proof Ink

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