10 Gram Tyvek Silica Gel Packets, 50 Pack Meets FDA specifications for food and drug products Dry-Packs Silica Gel Packets are Non-Toxic and an Inert moisture absorber! Silica gel can absorb 40% of its weight in water vapor Provides superior absorption - remains dry at maximum saturation Quantity 50 - 10 Gram Tyvek Packets