1.material:abs 2.packing:double blister+paper card 3.q'ty/ctn:50pcs/ctn 4.meas:69*19*21.5cm inatallation:remove the protective cover from the adhesive tape and stick the holder on a clean, degreased surace. to adjust the width of the holder to your mobile phone, use the side regulator.notice:the holder cannot obscure the driver's view. car phone holder