10 Pack of 3M Self-adhesive Finger Grips Straps Phone Holder Kickstand for Android iPhone iPad Tablet. Made of black silicone with internal magnets to keep stand in position, or flat against phone when not in use (very low-profile, see pics). I have a lot of these, so buy a pack of 10 to give to family/friends, or to have extras on hand for replacement--can't beat the price!
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