
This is Snappi, an alternative tool to secure prefold, flats and cloth made nappy. It's a clever invention and it works so well with prefold compare to pin. Snappi is even said to be less danger than the conventional pins that our mother and grandmother were using since you don't have to worry about poking the baby accidentally.
How to use? Just pull or stretch them left, right and down to maximize the flexibility and stretchability. Then on the prefold or flat, hook the left then pull to right to hook on the right. After that, pull down to hook and it is very secure.
Alright, that's the basic instructions I learnt but in reality when I tried to use... I'm new and I can't get a good hook on the cotton flat on my dd. Since I use only cotton muslin which is thin, the sharp edges of the grip in fact cause uncomfortable feel on dd's abdomen. I hooked it on quite firm and the teeth went all the way through the muslin. Then I folded another muslin to be wrapped around her abdomen in order to have thicker area for Snappi to hook on. It looks so messy. Probably Snappi works great with prefold or pre-fitted since they are thicker. Maybe you can share with me your experience with Snappi??

Just look at the gripping teeth, aren't they looks sharp?