?What You Will Get?2 pieces of reusable hard-shell covers. Good protection for your expensive freestyle libre sensor. Great gifts for your loved ones. Buy now these 2 reusable hard-shell covers for Freestyle libre 1/2 sensor! If you're not satisfied, we can 100% refund or replacement. ?Better Protection for Your Libre Sensor Cover?No longer concerned about bumping your arm getting into the car, walking through doorways, or showering. This hard-shell cover is a must for your FreeStyle libre cover. ?Best Compatibility?This is the best companion for Freestyle Libre 1/2 sensor. Using the hardshell cover and the sensor cover(sold separately) can keep the Libre sensor on your arm for multiple days involving daily showers, sweaty exercises, and rough play. It is so comfortable that sometimes you have to reach to feel it to make sure that you had not lost the whole thing. Wear it and forget about it. ?Easy Patch, Easy Removal?With the protective hard-shell cover as a safe middle layer, Kovoq sensor covers(sold separately) leave no glue on the Libre FreeStyle 1/2 sensor, so you can easily remove or replace the patch if needed without pulling the sensor. ?Reusable Hard-shell Covers for Stronger Protection ? Kovoq reusable hard-shell covers for libre sensor covers, give you strong anti-shock, anti-knock, and dirtproof protection rather than traditional covers for sensor diabetes which just provide you slight protection and some fixation. The hard-shell covers are specifically designed for FreeStyle Libre 1/2 without blocking the airflow nor affecting the data reading.