Question about Medela PersonalFit Flex, 2 chest tubes size L (27mm)

I was searching for the same product, and I saw in the manufacturer's specifications: "101033992 – PersonalFit™ Flex breast shield L
(Ø 27 mm)" .... and in the specification here in galaxus there is the same code

Normally if you click in the specifications there a place where they tell you which size it is.