**Product Specifications:**
**Brand:** BIGBRO
**Insurance Information:** Insured by PICC (People's Insurance Company of China), with a product liability insurance coverage of up to 1 million RMB. Insurance policy number: PZAI202344060000000003. Certified by China National Quality Certification Center and holds a 3C certification.
**Manufacturer:** Qingtongmi Sports Goods Co., Ltd.
**Product Line:** Motorcycle passenger helmets series.
**Certifications:** National 3C certification, GB811-2022 testing standard compliance.
**Features:**
- ABS material for helmet body.
- High-strength and impact-resistant.
- Optifog HD lenses.
- Ventilated and breathable inner lining.
- Quick-release buckle for easy fastening.
- Lightweight design.
**Design:** Cute and colorful designs available, suitable for children.
**Safety Features:**
- High-definition lenses for clear vision.
- Adjustable lenses to protect against wind and debris.
- Lightweight design for comfortable wear.
- 3-layer protection with ABS shell and EPS foam padding.
**Additional Details:**
- Two cute ear accessories on top of the helmet.
- Adjustable head circumference with quick-release Velcro.
- Removable and washable inner lining for cooling and comfort.
**Product Information:**
- **Model:** KY01
- **Material:** 709ABS
- **Weight:** Approximately 660g
- **Head Circumference:** 46cm-54cm
- **Helmet Dimensions:** 20cm (length), 13cm (width), 21cm (bottom width)
**Color Options:** Mint Green Dinosaur Boden, White Panda Daxianer, Yellow Tiger Axe, Light Blue Sea Lion Aifei.
For more details and accurate measurements, please refer to the actual product.