3 in × 17

the device can reflect the user's heart movement timely and accurate

Size（mm） 38 39 40 41 42 43 44 Foot length 240 245 250 255 260 265 270

Operate on smooth ground

Charging method: USB magnetic suction

Casual Lapel Solid Color Long-sleeved Shirt for Men Kids Shoes 3 in × 17Product information Style: Cardigan Edition type: Loose Collar type: Lapel Sleeve length: long sleeve Pattern: plain Thickness: Thin section Error range: 2 3CM Main fabric composition: cotton The content of the main fabric ingredient: 100 (%) Color: blue, dark gray Size Information: Size: M, L, XL, XXL, 3XL, 4XL Note 1. Asian sizes are 1 to 2 sizes smaller than European and American people. Choose the larger size if your size is between two sizes.