20mm/22mm strap For Samsung Galaxy watch 3/46mm/42mm/Active 2 40 /correa Gear S3 Silicone bracelet For Huawei watch GT 2/2e/3 pro band
20MM watch band:

For: Samsung Galaxy watch 6-6 Classic

For：Samsung Galaxy watch 5/5 pro

For：Samsung Galaxy 4 44mm 40mm

For：Samsung Galaxy watch 4 classic 42mm 46mm

For：Amazfit GTS 2-2e-mini-GTS 3

For:   Amazfit GTS 4-4 mini

for : Amazfit Bip/U/S/lite

for ：amazfit gtr 42mm

for ：Samsung watch 42mm

for： samsung galaxy watch 3 41mm

for ：Samsung Galaxy Watch Active 2（40mm 44mm）

For ：Huawei watch Gt 2-2e-pro 42mm

For : xiaomi mi watch lite

For Garmin Vivoactive 3 / 3 music / Forerunner 245 / Forerunner 645  

And other traditional or Smart Watches with standard"20mm"lug width.

22MM watch band:

for Samsung Galaxy Watch 46mm

for Samsung Gear S3 Frontier/Classic

for huawei watch gt 2-2e-3-3 pro 46mm strap 

For samsung galaxy watch 3 45mm

for amazfit gtr 47mm/Gtr 3/Gtr 3 pro

For Amazfit GTR 2-2e

For Amazfit GTR 4

For Huawei Honor Watch Magic

For Xiaomi Huami Amazfit Pace

For Xiaomi Huami Amazfit Stratos 2/2s/3

For xiaomi mi watch strap

For Garmin Vivoactive 4

 For xiaomi watch s1