I recently replaced some worn tires on my MTB and wanted to replace the tubes as well. This set of tubes came with a set of tire levers as a bonus. The tubes were tightly rolled and when unrolled looked smooth with no imperfections. The Schrader valves looked like they are high quality, as well as the rubber. I appreciate the inclusion of the 2 tire levers as they came in handy when removing the tires. My MTB uses 26” Mavic high performance rims and these tubes were a little thicker than what I am used to, so they were a bit more of a challenge to install. After tucking the tubes into the tires and rims, while inflating and deflating to make sure there weren't any twists or pinches, they seemed to have settled in. I took my bike out for a test ride, and there were no issues.After several rides including some on technical trails, they are holding up great with no issues. Overall, I really like these tubes. Although the rubber is slight thicker than normal tubes, I feel confident the extra rubber is more durable and is more resistant to blowouts and punctures. They are a little more expensive than other tubes out there, but for the puncture resistance and durability, it might be worth the extra cost.
