folks. I'm new to the prius world, just got a 2015 prius c1 a few months ago & bought an arm rest on amazon right away. I ordered an extra one by accident. I installed the same exact model in my prius c1 & it fits fine, very snug. I used velcro tape to put it in place, minimal movement (some have used double-sided tape with success too). I believe it fits 2012-14 prius c1s as well. I'll give it away for $40. Still brand new in box. I can add the velcro tape too for free. Let me know if anyone's interested.