Total of 40 Glucose Test Papers from Frey Scientific are packaged in a waterproof, amber UV, resealable-snap bag. Using a tweezers, you or students can dip test paper into desired solution for 1 to 2 seconds. Then wait 60 seconds before comparing to color chart (on front of bag). The test strips can be cut to smaller pieces based on the need of the activity. Sold as 40 glucose test strips total.