Integra Boost Humidity Indicating Cards of 10%-60% (10pcs) spawn bags This product serves as an

This product serves as an excellent source of calcium and nourishment for soil microbes

Consider using it in late spring through early fall for optimal results

With no harsh chemicals or unpleasant odor

Introduction of 2

Integra Boost Humidity Indicating Cards of 10%-60% (10pcs) spawn bags This product serves as anDescription Integra Boost Humidity Indicator Cards have a 10% 60% relative humidity range and are a simple, fast and effective way to visually verify the integrity of your product. Excellent for home hobby use, as well as for a business to boost their customers' confidence in your product line. Perfect size for putting in a glass jar or other storage device. Use in conjunction with Intregra Boost Humidiccant humidity control packets (also available).