These aftermarket brake discs are a great low-cost alternative to Mazda OEM or other name-brand parts. Same great quality, save yourself some money.
When replacing brake discs and pads, remember to clean the disc surface with brake cleaner to remove the oil used for storage and to take the cap off the brake reservoir before pushing the pistons back into the calipers.
Check your brake fluid level at every oil change to ensure it is above the "minimum" level. Change the fluid every two years to ensure there are no contaminants or moisture in the fluid. If moisture or contaminates enter the brake system they can ruin it from the inside out.