Hydrowave Striper Thumb Expansion Module, Black

The craftsmanship on this module is terrible the pens are crooked one side either sticks out further than the other holes don't line up with your unit I sent one back and had him send me another one same problem and it caused the HydroWave not the function properly wouldn't buy this again

Poor quality! Only one screw lined up!

Good product

Not great. Here's a tip: you know yer in for a problem when seller doesn't even bother to correct their ad... which has it being sold as a "thumB"...not a "thumP", July 9, 2021.