Miracle® 360° 神奇學飲杯替換墊圈，2入組

Our 6oz cups had been leaking for weeks and I'd almost given up on them until I found these exact replacement collars with the sealing O-rings. Snapped them on in under a minute and the seal is perfect again, no more sticky countertops. Two in the pack means I've got a spare ready for when the next

I replaced the old collars on our 10oz cups and the seal is finally back to normal—no more leaking in the diaper bag. The silicone feels just as sturdy as the originals, so I’m hoping they’ll last through another year of toddler use.

We were losing water pressure on our older cups, but these new collars fit perfectly and the seals are nice and tight. The o-ring sits flush so there’s no leaking, even when my toddler tosses it on the floor.