| Scrub stroke | 100mm |
| Scrub frequency | 100cpm |
| friction load | 1000±100g |
| Grinding head area | 2cm² |
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;