This is a consumer fitness tracker and not a medical device

video recording

it is ideal for teaching

Bearing system: Curved shoulder strap

Type: Optical Mouse

Magnetic Flip Glass Wiper with Algae Scraper for Double-sided Cleaning Size:L This is a consumer fitnessOverview: 1. It can easily switch between scraper mode and magnetic brush mode. 2. The small body has strong magnetism and can easily enter areas that are difficult to reach by ordinary magnetic brushes. 3. The special double sided cleaning cotton in the tank can clean the glued corners of the fish tank. One action can clean both sides. Specification: Color: Flip strong magnetic cylinder wipe S, flip strong magnetic cylinder wipe L material: Plastic