Silica Gel Beads Size: 3-5 mm; These are not the fine powder type for drying flowers; Do not use them for drying flowers; You can place the beads inside organza bags, muslin bags, or any other breathable bags; Replacement desiccant for air dryers and compressors | Indicating Blue silica gel beads will change to Pink when 50-60% absorbed with moisture; Still almost half more capacity is left to absorb moisture even after color change; Blue Beads contain less than 0.3% Cobalt Chloride which may pose health risk if ingested in large quantities; Do not use for food or medication | Beads can be Reactivated by Placing in the Oven for 0.5 to 2 hours at 200 to 250F Or Microwave for 10 Minutes at Defrost Mode; Don't use over 250F in the Oven; Depending on the beads' condition, they may take shorter than the recommended time; Please check the beads' color periodically | Beads are stored in an Air-Tight Sealed Container for Long-term Preservation and Protection; Handle in the jug for easy carry and pour; Packaging jugs are made in the USA | [Warranty Information] Our products are supported with new replacement or full refund with no time limits if they don’t work