Refill pack (20 days ) for :<br>Hello Kitty &amp; Boy Mosquito Repellent Wristband - Battery operated <br><br><img src="http://gdetail.image-gmkt.com/731/174/665174731/2016/10/cda46ffb-4ce3-4bae-af94-7e7f2d1b46a6.jpg" undefined=""><br><br>