iPhone 4/4s, 5/5s holder for bicycle

This a holder for iPhone 4/5 for bicycle. It can be mounted anywhere on a tube with diameter less than 3.5 cm using two tie-wraps. The mobile phone is fixed using two rubber bands. Rubber bands cover home button and and the top part (where speaker is located). Holder allows to connect headphones without a trouble.

I included three stl files:

1) Single STL file with a model

2) Two small STL files to print holder using Printrbot Simple Wood, because the print size is limited by 10 cm.