4 Gallon [30 LBS] Orange Premium Indicating Silica Gel Desiccant Beads(Industry Stand 3-5 mm) - RECHARGEABLE30+ Year Experience in the Industry of Silica Gel Desiccant Premium Quality(See Our Customers' Reviews) 30 LBS(4 Gallon) Premium Orange Indicating Silica Gel Desiccant Beads Silica Gel Beads Size : about 3 ~ 5 mm. Beads will turn Orange(Active) to Dark Green(Saturated) When fully Absorbed with Moisture. Beads can be Reactivated by Placing in the Oven for 0. 5 2 hours at 200 250F Or Microwave for About 10 Minutes at DEFROST. Don't use over 250F in the