Hey, great question about the IKEA Bolmen White Toilet Brush! Here's what I found based on our research about its bristle durability.

Pros:

1. Affordability: If you're looking to save a few bucks, this brush is hard to beat. It’s about $10 for a pack of two, which is pretty budget-friendly.

2. Simple Design: It's got a no-frills, compact design that’s easy to use and store, especially if you’re short on space.

3. Durability: The bristles are pretty durable and can handle a good amount of pressure without falling apart. So, it should be fine for regular cleaning.

Cons:

1. Cleaning Power: The brush is okay for everyday cleaning but might struggle a bit with tougher stains since the bristles aren't super stiff.

2. Moisture Issues: The brush stand doesn’t have a drainage system, so it tends to stay moist longer, which isn't very sanitary.

3. Size: It's a bit on the smaller side. If you have a larger toilet bowl or hard-to-reach spots, it might take a bit more effort to clean thoroughly.

In a nutshell, if you're after something affordable and straightforward, the IKEA Bolmen should do the job.

But if you need something for tougher cleaning or quicker drying, you might want to check out other options.

You can get more details about it here.