We wanted to offer this adorable teether without the necklace...you can cord your own, attach it to a mobile or play area, or just use it alone. Bat measures 3.5" wide and 2.5" tall. The bat teether is 100% food grade material or silicone (similar to pacifiers or bottle nipples). Soft on babies’ gums and emerging teeth. No BPA, phthalates, cadmium, lead, or metals.