This is the Spanish version of the NOW part. It is designed for use with Long-Acting insulin pens. NOW has 7 positions, one for each day of the week.
You will find the size selector in the right corner of this page. Before buying please read carefully the user guide to choose correctly your size:
http://granotastudio.com/index.php/user_guide/
WARNING: It is not possible to return the product if you ordered the wrong size, so please make sure you choose the right one.