This teether can be used alone, or attatch it to one of our signature/personalised teether clips. This teether is the ultimate sensory teether product on the market. The soft texture, durable material and shape maximizes sensory stimulation, engagement and exploration! Made from 100% food grade silicone, BPA free and dishwasher safe (top shelf). can even be put it the freezer for extra relief. They are non-toxic and do not promote mold growth or absorb odors, making them safe for your little one.