[ Premium Quality Crystals] Made of premium quality raw material with further dust treatment, our flower drying crystals are great for preseving flowers, erbs, boutonnieres, corpetti, wreaths, seeds, ecc. [ Moisture Indicating] With 10% orange indiating silica gel that enables users to quickly determine when desicant needs to be recharge ed or replaced. (Orange Beads changed to Dark Green). [ Package Reclosable] Reclosable zip top bag(pacchetto esterno) plus OPP bag(pacchetto internal), very good for delivery and storage. [ Easy to Use] Cocl2-free, these products are perfect for beginners to do flower drying DIF craft, very easy and convenient. Warm hint: Please wear gloves and breathing mask if required. [ Istruzione di ringiovanimento] You may rejuvenate the silica gel as istrution, the drying crystals can be reused again when dark green beeds back to orange. (Rejuvenated by Oven: 0,5 to 1 hours at 200F to 250F; Rejuvenated by Microwave: 7 to 10 Minutes at Defrost Mode)