Phone holder for old bikes

TPU case which holds 18 x 85 x 175 phones. TPU which I used was Filaflex Foamy. Ended up pretty stringy and realized I needed side holes for buttons.
There's two versions of the TPU case, one in the picture and one in the other picture.

If your bike has curving handle bars this is for those, ~26 mm at the widest and ~23 at the narrowest with <36 millimeters for the center mount.