The way that the sippy cup comes apart and put back together is not ideal. You have to put the handle ring on first, then the ring that holds the silicone nipple screws on, but you can't predict where the twisting on will stop, so the nipple is always in the wrong spot relative to the handle! The handle has to sit in a certain way and does not twist with the bottle. So what I end up doing is twisting on the lid, then estimating where I need to move the nipple, unscrew the lid, move the nipple, sSee full review