Cannot be personalised. Teat: 100% BPA, PVC and phthalate free natural rubber round teat Made in Denmark. Complies with the strict EN1400 standard. The manufacturer recommends changing the soother every 6 weeks No protective hood is included. We never recommend microwave sterilisation. And in this case, as the soother is made of PP and the assembly is made with the same rubber as the teat, uncontrolled high temperatures can cause the soother to fall apart. Our recommendation is to heat a pan of boiling water, remove from the heat and put the soothers in for 2-5 minutes. If you cannot choose a size, we are out of stock