does it glow in the dark

No. It's FLOW as in slide easily, not "glow." The only picks from Dunlop that are glow in the dark (that I have ever seen) are the 446 series which are only available in the "R" or Refill size bags of 72. They include 446R.53, 446R.67, 446R.80, 446R.94, 446R1.07, and, 446R1.14. .

Is this good pick for acoustic guitar? and how about durability?

Not ideal for acoustic styles like strumming chords, since the pick has no flexibility and can audibly “click” against the strings.

Jim Dunlop Flow Jumbo Grip 4.20mm Guitar Pick (547P4.20)

Jim Dunlop Flow Jumbo Grip 4.20mm Guitar Pick (547P4.20)

Product ID: 741561743

Details

Color
green
Material
Plastic
Size
4.20mm
Guitar Pick Thickness
0.15"
Brand
Jim Dunlop

⚡Sharp tip for precise, articulate attacks

🎸4.20mm jumbo thickness for ultimate control

🟢Wide angle design for ergonomic comfort

Details

Color
green
Material
Plastic
Size
4.20mm

Description

🎸 Elevate your riff game with the Flow Jumbo Grip—feel the power in every pick!

ERGONOMIC WIDE ANGLE - Designed for faster play and reduced hand fatigue
STAND OUT IN EVERY GIG - Extra weight enhances control and sound projection—be the player everyone notices
SMOOTH CONSISTENT BEVEL - Uniform bevel guarantees smooth transitions and attack consistency
PRECISION AT YOUR FINGERTIPS - Sharp tip ensures crisp, articulate note definition
JUMBO THICKNESS JUMBO IMPACT - 4.20mm thickness delivers powerful, louder sound with every strum

The Jim Dunlop Flow Jumbo Grip 4.20mm Guitar Pick (547P4.20) features a thick 4.20mm plastic build with a sharp tip and wide angle design, delivering ergonomic comfort, precise attacks, and a louder, smoother sound. Ideal for guitarists seeking enhanced control and faster play.

Specifications

Item model number	547P420
Is Discontinued By Manufacturer	No
Color Name	green
Compatible Devices	Guitar
Guitar Pick Thickness	0.15"
Material Type	Plastic
Size	4.20mm

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