https://www.amazon.com/Sivan-Fitness-Exercise-Density-Interlocking/dp/B06Y3C3W5H
Yes? They’re more expensive and have 4.5 stars. 
Looking at the Amazon reviews, these are not really high density rubber. They’re foam with a rubber coating. I don’t own these, but I have had foam mats before. They don’t hold. I’m unsure how a thin layer of rubber will really improve the durability.
Are these 100% rubber?
Per the vendor, they are not rubber coated. The are fully rubber and quite hefty.