First I should say that I don''t normally wear nose plugs but have adopted them for a new workout at the pool (to improve breathing-stroke rythum and endurance). The nose plugs will work. But I still have to adjust them often to get them into the correct position otherwise they slip off my nose. They pinch after a while (15min) but do keep the water out.
I would suggest that the tips are very good but the plastic ''bridge'' should be modified to allow more personal adjustment (now they are just a clothes peg). But then that would be a different product at a different price I am sure.
I will be asking around for a better noseplug but will keep these for now.