Calmpal Universal Sticky Pad with 3M Tape for ClipGRIP Bike Cellphone Mount Holder Universal 3M sticky pad for ClipGRIP Bike Cellphone Mount with butterfly Rubber Band It should be use in concert with Clipgrip cellphone mount and can not be used alone Can be sticked directly on the back of device or the back of phone case Just use the 3M Sticky Pad/Clipboard with case that has smooth hard back so it can stick to your case firmly,do not use it on leather case, matt back case Package content:1 piece 3M sticky pad and 1 piece Rubber band.do not include phone mount system or case