As a magnet supplier, we often hear customers say:“The magnets I received don’t seem quite right…” Magnet quality directly influences product performance. However, for many users—particularly those outside the magnet industry—it’s not always obvious how to identify if a magnet meets the required standards. In this article, we’ll walk you through four essential factors—magnetic performance, dimensions, appearance, and durability—to help you identify substandard magnets and understand how to respond when things go wrong. 1. Magnetic Performance: The Core Metric of Any Magnet When it comes to magnets, strength is everything. Yet many customers only focus on the grade (like N52) without knowing how to verify actual performance. How do factories