PL08/SCO

Snapped it onto the Birillo base in seconds and the fit is perfect—no wobble at all. Feels just like the original, which is exactly what I needed to get the brush back in action.

The bristles are stiffer than the old one, which actually makes scrubbing the rim feel more effective. Swapped it in seconds and it fits tight. Glad I found this instead of tossing the whole holder.

Finally got around to swapping the old brush head and the replacement clicked right into place on the Birillo handle without any wobble. It feels exactly like the original, no cheap plastic or weird flexing. Exactly what I needed to keep the holder working without buying a whole new set.