The dosing ring itself is very well made and feels solid in hand, with excellent build quality. I use a 9Barista with a 53.5 mm IMS basket, and since the dosing ring is listed as 54 mm, I initially thought it would be a good fit. Unfortunately, that wasn’t the case. The IMS basket measures about 65 mm across, while the dosing ring’s internal diameter is only 62 mm, making it too small to sit properly. Overall, the product quality is great, but it’s not compatible with the 9Barista despite the si...