Which country is this made in?

Um, the big one with lots and lots of people, starts with 'C'...

Is the item well-packaged?

Yes the item was well-packaged. Came in nice small white box that contains the 7 different size magnetic stir bars.

Does it come with an instruction sheet to suggest which size for which volume of liquid? I need for a 4 liter container, 3000 ml of liquid?

There are no instructions. I tried a couple different ones until I found the one that worked best for my needs

Can we use this to replace a stirrer that comes with self stirrer coffee mugs?

Yes, it's a magnet which has been coated with PTFE.

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Description

🔬 Stir Up Innovation with Every Spin!

PRECISION STIRRING - Achieve uniform mixing with a 7-piece PTFE stirrer set.
CHEMICAL RESISTANCE - Teflon casing ensures compatibility with harsh chemicals.
ENHANCED TURBULENCE - Cylindrical design increases surface area for better mixing.
VIBRATION REDUCTION - Recessed bezel minimizes vibration for smoother operation.
VERSATILE APPLICATIONS - Ideal for life sciences, environmental testing, and research labs.

The Ronyes Lifescience 7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar is designed for precision mixing in laboratory settings. Its chemically inert Teflon casing allows for use with harsh chemicals, while the recessed bezel reduces vibration during operation. Perfect for environmental testing and life science applications, this stirrer set enhances mixing efficiency with its unique cylindrical design.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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