**Product Specifications:**

**Brand:** Oujie

**Product Name:** AOLIN Wiper Blades

**Recommended Replacement Interval:** Every 6-12 months for optimal driving safety

**Common Issues with Wiper Blades:**

- Are you safe on the road with your current wiper blades?

- Need to verify if wiper blades need replacement?

- Clear guidelines for replacement based on quality of wiping performance

**Indicators for Replacement:**

- No streaks or issues: No need for replacement

- Less than 3 streaks outside effective wiping area, at least one streak in the center wiping area: Consider replacement

- More than 4 streaks outside effective wiping area, no streaks in center wiping area: Suggest replacement

- More than 6 streaks outside effective wiping area, visible scratches above wiper blade bracket: Immediate replacement required

**Quality Assurance and Services:**

- Manufacturing processes include mold development, injection molding, stamping, rubber strip production, automatic assembly, and warehouse inspection

- Free 30-day trial for wiper blades with issues like sound, ineffective wiping, non-human damage, dislike, improper fit, rubber strip cracking/aging

- Easy returns and exchanges without reasons

**Additional Information:**

- For more features and details not listed, please contact customer service.