I will add later Ok. I used a few of these this weekend. This is my first time using shrink grommets. They have an open gap on the ring. Not sure if this is normal, just free space and not part of the overview. I do not care. yellow size. Well, everything in this set hits or misses when squeezing. I used the double crimp common to this style of connector and it fell off a couple of times. I went back to a regular single crimp tool and had to crimp it twice, saving 80% of it. The worst was yellow. fit. But they mostly worked. I need them to work all the time. I only broke the insulation on one. So just think about it.