Review on 🚀 AOLISHENG Extension Bearing Runners: Boosting Load Capacity and Efficiency to New Heights by Sean Webb

These seem to be pretty good slides. The only problem was that the black plastic guides on the front of the slides were cracked - when I opened the box I found a few fragments of black plastic. I bought 4 pairs and more than half of them had broken guides. That being said, it looks like this guide has no bearing on how they work, whether they're intact or not.