The first time I tried to put it in my SQ217, it was a little too large. I compared it with the original that came with the SQ and indeed, there was a small difference in size. I filed slightly, it's the advantage of this material the corrections are quite simple, referring to the original one. Result, impeccable! It's very classy the red interior! Thank you Signature Tips for allowing customization and having spare for your products. Fabulous!