Based on this product's specifications, here are some alternatives and similar models
Teether Key Toy Kids2 9460 for Babies 3M+ — silicone key-shaped teether
Summary description:
Silicone key-shaped teether Kids2 model 9460 designed for infants aged 3 months and older. The compact teether provides textured surfaces for soothing sore gums during teething and is easy for small hands to grasp. Lightweight and washable, it is suitable for home use and travel as a simple oral sensory toy for babies.