can this be used for arms?

Absolutely it can be used for arms that's why I bought mine. They use those for arms in cardiac rehab

Can this be used under a desk? I dont want my knees hitting the desk.

If you have a standard height desk, your knees will probably hit unless you 1) raise the desk; and 2) remove the middle drawer.

Does it have to be assembled?

A little bit. But they give you the tools and instructions to do it. It's quite simple to assemble.It's basically the 4 bolts for the feet and the two pedals. Just plug the digital reader into the cable on the machine.

I hadn't noticed the word "magnetic" in the title until the order arrived? What's that all about?

Magnetic resistance will give you a quiet pedal.

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Sunny Health & Fitness Magnetic Under Desk Exercise Bike - SF-B0891

Product ID: 249292092

Details

Brand
Sunny Health &
Colour
Magnetic Grey
Item weight
8.66 kg
Material
Alloy Steel
Product dimensions
54D x 42W x

👜Lightweight & portable design

📊Real-time digital monitor

⚙️8 magnetic resistance levels

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VT193116

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Description

🚴‍♂️ Pedal your way to productivity and wellness—because your desk deserves a workout buddy!

DUAL ACTION WORKOUT - Switch between arm and leg modes to tone your entire body without leaving your chair.
TRACK YOUR PROGRESS - Onboard LCD display keeps you motivated with real-time stats on speed, time, distance, and calories burned.
COMPACT READY TO GO - Pre-assembled, lightweight, and equipped with a convenient handle for easy storage and portability.
SEAMLESS DESK FITNESS - Stay active effortlessly with low-impact pedaling designed for busy professionals and seniors alike.
CUSTOMIZABLE INTENSITY - Dial in your perfect workout with 8 levels of smooth, whisper-quiet magnetic resistance.

The Sunny Health & Fitness Dual Function Under-Desk Bike Trainer is a compact, portable mini exercise machine designed for low-impact arm and leg workouts. Featuring 8 adjustable magnetic resistance levels and a digital monitor displaying speed, time, distance, and calories, it offers a quiet, customizable fitness experience ideal for office workers, seniors, and anyone seeking to stay active while seated. Pre-assembled and lightweight with a carrying handle, it combines convenience with effective cardio training.

Specifications

ASIN	B07QZHNWK8
Best Sellers Rank	#37,710 in Sporting Goods ( See Top 100 in Sporting Goods ) #67 in Exercise Bikes
Brand	Sunny Health & Fitness
Brand Name	Sunny Health & Fitness
Color	Magnetic Grey
Colour	Magnetic Grey
Controls Type	Knob
Country of Publication	China
Customer Reviews	4.4 out of 5 stars 4,740 Reviews
Display	LCD
Global Trade Identification Number	00815749012913
Handle Type	alloy steel
Included Components	Exercise Bike, User Manual, Hardware, Tool, (1) LR44 Battery
Item Dimensions D x W x H	54D x 42W x 27H centimeters
Item Length	7 Inches
Item Type Name	Under Desk Magnetic Cycle
Item Weight	19.1 Pounds
Item weight	19.1 Pounds
Manufacturer	Sunny Health & Fitness
Manufacturer Part Number	SF-B0891
Material	Alloy Steel
Material Type	Alloy Steel
Maximum Stride Length	18 Centimeters
Maximum Weight Recommendation	220 Pounds
Minimum weight recommendation	220 Pounds
Model Number	SF-B0891
Number of Batteries	1 LR44 batteries required. (included)
Number of Resistance Levels	8
Operation Mode	Manual
Power Source	Battery Powered
Product dimensions	54D x 42W x 27H centimeters
UPC	815749012913

Reviews

J**I

انصح الجميع الجهاز يستاهل

جهاز متين وممتاز لتمرين الركب والمفاصل

29.04.2026

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VT193116

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In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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