Dry-Packs 5gm Indicating Silica Gel Packet， Pack of 20</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Cobalt chloride free orange indicating silica gel</li><li>Indicator beads change from orange to dark green once it reaches 60-percent of it's moisture absorption capacity</li><li>Packet made of durable clear perforated plastic which allows it to breath and absorb moisture</li><li>Fight mold， mildew， corrosion and rust with silica gel</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51kraZ7joUL.jpg' noproxy></br>