bernette Bobbin Case b33/b35

I was worried about compatibility, but this bobbin case fits my machine perfectly and the high thread tension is exactly what I needed for sewing denim. It's sturdy and works smoothly right out of the box.

The tension on this replacement case is noticeably firmer than my old one, which is exactly what I needed for thicker thread. Hooked it in and it clicked right into place—no fiddling with the drop-in mechanism.

Swapped out the old bobbin case that was giving me uneven tension, and this high thread tension version solved it perfectly. The hook bobbins fit snugly and the stitching is consistent now.