Let me start by saying these replacement spout caps are a lifesaver for busy moms who rely on their eufy wearable pumps. The snug fit on my E10 model keeps dust out when I'm running errands or tossing the pump in my diaper bag. The soft silicone feels premium, and the 8-pack means I won't need to reorder for ages.

BUT – and this is a big but – don't expect these to be leak-proof miracles. When testing during my nursing sessions, I noticed what other reviewers mentioned: milk can absolutely seep through if you're bending over or moving vigorously. It's not a firehose situation, but seeing droplets escape made me paranoid about wasting 'liquid gold'.

The caps shine most as hygiene protectors. They create a solid barrier against fridge odors and bacteria when I use the fridge hack between pumps at work. For $X price, getting 8 caps is stellar value compared to OEM parts – just manage expectations about leakage.

Final verdict? Worth buying as affordable dust covers, but keep your pump upright and maybe double up with nursing pads if you're an oversupplier or constantly on the move.