20 in one bag 
It will last you 3 weeks use 1 patch a day 
Feature 1: Slimming
Promotes better metabolism, blocks the absorption of grease, sugar, and starch, and helps balance excess appetite. Effectively stops fat accumulation.
Feature 2: Safe
Formulated with all herbal ingredients to safely reduce fat in the abdominal area.
Feature 3: Quick Results
Noticeable results within the first 3 to 4 weeks of daily use.
Feature 4: No Effort
Especially for people who have no time for exercise or diet. Just stick it on your belly and have a sweet dream, then tear it off the next morning.
Specification:
Instructions: Apply on the abdominal area for 6 hours daily, use during sleep for best results.
Package Includes: 10/30/50 x Belly Stickers
Notice: It is best to use a warm towel before pasting, which is more conducive to absorption. Use 1 tablet per day. It is recommended to use at night. The use time is about 6 hours.