NEWBOLER Mini Bicycle Saddle Bag Lightweight Small 0.5L Bike Bag Portable Multi function Bags Cycling Tail Bag Bike Accessories

The reviewer briefly mentions the NEWBOLER Mini Bicycle Saddle Bag as part of his bike setup, noting its attachment method and that it holds his pump, spare tubes, and tools. He comments on its weight, stating that although it weighs almost half a kilogram with contents, he doesn't mind because he doesn't race and his bike is already heavy.