1. Material: ABS
2. The diameter of the upper cup holder can be telescopically adjusted, and the adjustment range is 75-153 mm to meet more storage needs
3. Anti-shock foam to avoid abnormal noise when it collides with the cup
4. The fixed edge of the base is covered with non-slip silicone
5. The elastic structure of the inner wall of the cup holder can limit the problem of cup shaking
6. With a compass, not afraid of getting lost
