Review: The product are outside diameters not the inner. out of all three came only with циферкой калибраторов 25 металопластиковой tube 20/25. Calibrator with циферкой 20 do not intermeddle in металопластик 16/20 my effort is not enough. металопластиковые pipe with a smaller diameter I do not see we have somewhere used. in the end after paying for the device with three калибраторами i only bought one. this is I finish this experience purchasing goods.
But in fairness the goods came quickly and the price is acceptable.