1, Aluminum Alloy Material: Made of high-quality aluminum alloy material, this saddle bag stabilizer is sturdy and durable. 2, Fixed Bag: It can be fixed in the arch position with the rear metal frame, which can fix the bag firmly. 3, Avoid Saddle Bag Shaking: Avoid the problem of the saddle bag shaking during cycling and on uneven roads. 4, Water Bottle Installed: Bottle holder installation holes are added on both sides of the rear rack to increase the function of carrying water gear. 5, Installation is Simple: It can be installed in the rear stem in a few simple steps, simple and easy to use. Description: It can be fixed in the arch position with the rear metal frame, which can fix the bag firmly, avoiding the problem of the saddle bag shaking during cycling and on uneven roads. This saddle bag stabilizer is made of high-quality aluminum alloy material, which is sturdy and durable. Name: Bicycle Rear Bag Stabilizer Material: Aluminum alloy + stainless steel color: Black Package Contents: 1 x Bicycle Saddle Bag Stabilizer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.