Anyone who’s been to a professional gym or fitness studio has seen the impressive interiors covered wall-to-wall with large mirrors. “Most gym mirrors do not have a frame and are way larger and custom-made (like the size of a whole wall). That is the main difference,” says Lachance. They are also usually designed with premium tempered glass or acrylic to be heavy-duty and shatter-resistant as gym clients frequent classes or train day in and day out for hours on end. Your home gym likely won’t require this kind of investment or setup of professional mirrors, but instead can make do fine with those made for the home. While many home mirrors are limited in size and sturdiness, many on the market are quite large, accommodate many budgets, and ultimately accomplish the same goal–providing you with a clear and safe image of your workout.