GFB Whistling Trumpet (suits all valves)

GFB Whistling Trumpet (suits all valves)

Marsoni

M251S

$40.41

Get it in 3 business days with 1 day shipping. Friday, May 29

GFB Whistling Trumpet (suits all valves)The 5702 can be used in place of the standard trumpet on all GFB valves, and will make the whistling sound more readily than the 5701 (high boost and RPM is required to get the whistle from a 5701), and at a slightly higher pitch.? Like the 5701 however, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50 50 venting.

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Your GFB Whistling Trumpet (suits all valves) orders ship within 1-2 business days.

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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They do what they advertised. You can NOT walk in them you will stretch them and pop a hole in them. You cannot sleep in them unless your going to wear larger cotton socks with them to keep them in place. They are easy to wash and dry which is nice. I will need to buy another pair. Great if your gonna watch a movie or binge TV in.

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Reviewed in the United States on April 7, 2026

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Monica Zamora Barragan

Cuba, US

★★★★★ 5

Great for dry feet or to help lock in moisturizer or medication

Size: Medium, Unit Count: 2, Size: Medium, Unit Count: 2

They’re stretchy and don’t feel goopy, I use them daily and they’re working great they keep my feet nice and hydrated and soft. I’ve been using them along with lotion to help hydrate my skin so they aren’t rough during the winter. They are comfy and if you must get up they’re grippy and don’t slip or slide they stay put. They’re super easy to put on and take off.

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Reviewed in the United States on January 25, 2026

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Deborah R

Alexandria, US

★★★★★ 4

Comfort

Size: Medium, Unit Count: 4

Easy to put on.

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Reviewed in the United States on April 9, 2026

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Teresa McGill

Natrona Heights, US

★★★★★ 1

Do not buy this

Size: Medium, Unit Count: 2

This is not a good product ! Whenever I put products on my feet and put them on the socks they were on for about 2 to 3 minutes I had to keep adjusting them on my feet then they started ripping

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Reviewed in the United States on December 8, 2025

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Darlene

Phoenix, US

★★★★★ 5

Amazing

Size: Medium, Unit Count: 2

Absolutely LOVE IT! These feel so wonderful on my feet and definitely helps dry cracked feet feel smoother and hydrated. So glad I bought these

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Reviewed in the United States on March 21, 2026