1 Pack of 500 Gram(1.1 Lbs) Dry & Dry Silica Gel Desiccant Packet - Rechargeable Packet dimension : 5" x 9", Silica Gel Beads Size : About 2 ~ 4 mm Premium Quality (30 Year Experience in Silica Gel Desiccant) - Pure and Safe Silica Gel without Cobalt Chloride. NO RISK Packet Material-Fabric by Spunbond Technology for "Ultimate Moisture Absorption" & "Heat Resistance for Reuse" Packets can be Reactivated by Placing in the Oven for 0.5-2.0 hours at 200-250F Or Microwave for About 10 Minutes at DEFROST. Don't use over 250F in the Oven. Depending on beads' condition, they may take shorter than the recommended time. Packets are stored in Resealable Self-Standing High Quality Foil Pouch Bag for Easy Storage and Use. - Air Tight Sealing & Sturdy Bag