KnockBlock G4+ (KNB)

Marsoni

M251S

$284.50

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

KnockBlock G4+ (KNB)The G4+ KnockBlock is an essential tool for tuning and can aid in the early detection of incorrect ignition timing, lean air fuel mixtures and mechanical issues. It is used it with ear buds, headphones or noise cancelling ear muffs and features special filtering to allow you to listen in and detect knock early. Listen to one or two knock sensors Special filtering design improves signal to noise ratio Can be used with ear buds, headphones or noise

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

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

I think this tray is a good value compared to other vendor's products that are $100+. I plan to keep it because it is a good value for me. HOWEVER, realize that the metal base does not extend across the full base of the cork liner. Metal pieces are only on the edge of long side of the liner. Also, the metal is lightweight.

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Reviewed in the United States on March 10, 2026

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hannah k

Whiting, US

★★★★★ 5

Good quality!

Good quality for price. Exactly what I expected

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Reviewed in the United States on January 15, 2026

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Anna Cummins

Alexandria, US

★★★★★ 5

Great Quality. As Described.

As described. Great quality. Attractive

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Reviewed in the United States on January 13, 2026

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Bill

Fort Morgan, US

★★★★★ 5

The Ideal Organizer

The UPERGO Valet Tray is an ideal size for my nightstand. It does not slide around but stays put where I position it. Each section is useful for the items I want to keep close at hand but in an organized fashion, cell phone, wallet glasses, change, etc. I love the cork interior of the tray; it’s stylish and functional.

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Reviewed in the United States on December 9, 2025

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JOY11

Charlottesville, US

★★★★★ 4

It's a functional organizational tray

I bought this valet tray for my nephew to be able to organize his go-to items, such as his cell phone, wallet, watch, bracelet, etc. I expected the tray to look more upgraded. The compartments are shallow, but they do the job. It is made of a cardboard-type material ( corkboard would have been nicer), and the black platform is a metal construction, which gives it a more stable and solid structure. Overall, for the price and its functionality, I guess it was worth the purchase.

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Reviewed in the United States on January 15, 2026