Silicone kralen – 12 mm – oval/disc/intermediate disc Size: 12 mm BPA‑free CE‑certified 100% child‑safe These kralen are often used as an intermediate disc between (silicone) alphabet kralen. These kralen are usually square and, placed side by side, they form a solid stiff plane. This does not move as easily. With oval intermediate discs in between you keep a smoother pacifier cord or a teething toy that stays nicely round. Without these intermediate discs you then get a straight segment in your teething toy.