BIKIGHT Bicycle Seat Post Bottle Rack Converter Cycling Bike Saddle Back Double Water Bottle Holder

Specifications:  

Features:
Water bottle holder adapter, super toughness.
Installed in the seat, it can extend installation two water bottle cages.
Fits for long time riding or Long distance travel.

Package Includes: 

1 x Bottle Cage Holder Adapter

6 x Screws

1 x Wrapped Board

Note:

1. Because the different measurement methods or fabric elasticity and other issues, so there may be 0.1-0.5 inch error.

2. Please understand because of the light irradiation or computer display difference.