XL-20P Plastic Aquarium Divider

"For Marine Aquarium and Freshwater Aquarium
1. Please insert the aligned panel into the plastic bar along its trench.
2. Install the suckers to the specially designed trench.
3. By fastening the suckers to the inside or outside trench to adjust its width
4. dismantle the panel from the panel from the middle part.
5. Saw the excessive length according to your aquarium size.
6. Insert the plastic bar into the single panel."