Curaprox Piece of Cake Baby Teething Ring Pink (Plastic). This intelligently designed teething ring features interesting textures, a rattle, and babys first toothbrush. This helps to reduce teething pain and promote sensory motor development while preparing babies for their first toothbrush. Developed in collaboration with Dr Nadia-Marina Kellerhoff from the University of Bern. Warning: Small toys can present a choking hazard. Supervise child during play.