Product review (5 stars): If doing this alone, you will need 3-4 screwdrivers unless you are also an octopus.
The product fits the Bosch Next 500 Series washer perfectly, replacing the old part. However, calling installation "hard" is an understatement. I did this by myself and it was a real struggle, bordering on 3 hour "nightmare." I had multiple cuts on both hand to prove it and lost feeling in my thumbs for 3 days trying to stretch the wire out by hand. Getting the first spring wire on by myself was impossible until I started laying it down from the bottom at 6 o'clock, jammed two long screwdrivers between the wire and concrete weight at roughly 9 and 3 o'clock to hold it in place, and then stretched the spring at 12 o'clock and used a third screwdriver/scraper to slide it down into place. The outer spring which goes spring at 6 o'clock was easier and I re-used the old one because it had more stretch to it. However I did have some help from a passerby who held the wire again at two points and let me stretch down to finish the job.