The silica gel will allow you to dehydrate your flowers. You can use them as decoration, put them in your homemade soaps and candles. The crystals will slowly absorb the water from the flowers so that they retain their original colour and shape. To dehydrate your flowers, place some crystals in the bottom of a box, place your flowers in the box and carefully cover them. You can then remove them after 24 hours. The crystals can be reused. Simply dry them in the oven (dry them in the oven at 110°C for 2 to 3 hours, then store them in an airtight box until they come to room temperature). The bag contains 1kg of silica gel crystals. Grain size 1-2 mm