Silica gel PET film 3g Cobalt free 1 case (3500 pieces) SA3g(NB) 1 case (3500 pieces)

Cobalt-free silica gel It is a familiar blue indicator, and the dark blue silica gel turns crimson when it absorbs moisture. Since it is a film, you can check the color from outside the bag. Since it is divided into small packets, there is no need to measure. Silica gel cobalt-free Bag material: PET film Weight: 3g Quantity: 3,500 pieces Size: 50 x 55 mm