Do you have the part number for the entire blade assembly?The original part. 76732-T0A-003 is 315mm or 12.4". The OE wiper inserts are very reasonable at $5.85 list. I would buy the correct part.
+1. My first Honda was a new 1990 Accord. Refills were the norm back then. All of my Hondas and Acuras since have used the refills - it's the only way to go as the OE approach works very well and it is very cost effective! I even put the correct sized Honda/Acura blades on my Chevy trucks so I can refill them too.I prefer to buy the inserts. Toyota is the only other manufacturer that I know of selling the inserts as opposed to the whole blade. There may be others. I wish every car manufacturer did this. I don't squeeze anything when replacing. They slide right out and slide right back in. Just grab the end and pull. You will have to look carefully to see which way to pull out. It should be self explanatory. Just be careful not to bend the metal supports on the sides of the blades and take care to make sure you don't miss any guides when sliding the new insert back in.