Teetherpop Fillable Freezable Teethers for Babies – Breastmilk Teether with Spill-Proof Sippy Slits – Teething Popsicle for Baby, Liquids & Purées, Cooling Teething Relief Feeder Pacifier – BlueLime

Customers find this teether effective for teething, particularly for younger babies, and appreciate that it works well with breastmilk. The product is easy to use and clean, prevents leaks during freezing, and provides immediate relief for sore gums. However, durability is a concern as customers report issues with the plastic covering breaking and the silicone ripping after minimal use.