Snappi Pins are the best thing to be invented for cloth diapering since forever. They eliminate all the hassle and problems that go with using regular diaper pins. No accidental stabbings of the baby. No missing one side when pushing it through. No more stabbing your own finger when fastening diapers. The Snappi just goes on easy and comes off just as easy, but holds fast for as long as you need it to. They're very easy to adjust how they hold the diaper, and when you get used to them, you can put them on and take them off one handed. They're durable, they hold great, and they last. The only reason we keep having to buy more is that we lose them around the house, out and about, or just down the back of the changing table. If you use cloth diapers with your baby, you need these Snappi pins.

These fasteners are quick to put in place and allow some flexing during movement.

Thicker than the Nappy Nippas I have purchased before - hopefully these will last a bit longer as all my original ones have snapped. Great for holding/fastening terry nappies.

Didn’t work on prefolds for toddlers

Summary: Save yourself some money and get the toddler size, not original size snappi for your newborn. Boingos are good for keeping up with growing baby sizes but they are not very stretchy and they are a bit dangerous as they come unclipped, which leaves sharp ends exposed and diapers hanging loosely.........Unless you have a premie, the toddler size will fit just fine for a newborn (my baby was 7lbs) and will last you longer than the original sized snappi. The original size was too tight for a prefold osocozy for my baby at around 2 months (12lbs) and left red marks from the diaper being too tight, but the 15-30 lb prefolds were too big for her and the snappi did not stretch far enough for the 15-30lb osocozy prefolds. At 3 months, the toddler sized snappi is reaching its maximum capacity as it is already starting to be a tight fit for the osocozy 7-15lb prefold. Whomever designed the snappis must have had babies with smaller waists. I wish snappis had longer elastics than even the toddler size (its not long enough for toddlers in my opinion).Boingo pro's and con's:The Boingo keeps up with expanding waist lines as the baby grows (can even be used on adult diapers too, I suppose), but they kept falling off when my baby kicked her legs too hard. Also, when I carried my baby, the Boingo rubbed between my baby's body and mine and unhooked from the diaper, even though I tightened the Boingo as much as I could (this has already happened so many times in two weeks, I can't even keep count). When the boingo lets go, it bites into soft skin, resulting in the boingo biting into my baby and her crying in pain while I carry her. Also, tightening the boingo is more time consuming than tightening a snappi since you have to go back and forth between the left side and right side to tighten progressively tigher each time because the Boingo is hard to stretch. The snappi has openings where I can stick in a finger to stretch the snappi easily to tighten the fit of the prefold, but the boingo has a cute but useless little star resulting in making the boingo difficult to grip without poking myself (I've poked myself with the boingo many times trying to stretch it to get a tighter fit in the diaper). In addition, the boingo has two pieces required to fasten a diaper, a left one and a right one (while the snappi has one due to entire ensemble bring connected) which is one more item i have to keep track of (or which i frequently lose and have to spend time searching for, while hoping baby doesn't pee/poo while I'm looking). This is even harder while changing diapers in the dark while the baby sleepsTwo hands vs one hand:I can remove and change my baby's diaper with one arm holding the baby and the other hand holding the snappi. This is super helpful if you are doing elimination communication. For the boingo, i have to put the baby down as fastening the boingo requires two hands. I can unfasten with one arm holding the baby but its much more difficult to do with boingo. I cannot reassemble a diaper with the boingo while holding the baby.While the toddler sized snappi is the clear winner between the original sized snappi, toddler sized snappo and boingo war, this only applies from age 0 to 4 months. Afterwards, boingo might be the only fastener to fit and I'll have to return to using the boingo, as inconvenient as it is.....For bigger babies, I eventually ended up using diaper covers and used the osocozy as diaper liners. This was due to 2 factors 1) difficulties in using boingo while snappi became too small and left red marks on baby from being too tight2) ocosozy cloth diapers without covers became soaked through to the other size with pee as the volume of pee increased as baby grew older. We needed a cover to keep the pee contained