AVENT orthodontic, collapsible & symmetrical teats respect the natural development of baby's palate, teeth & gums. All AVENT soothers are made from silicone & are taste & odour-free. Colours are subject to change. Orthodontic, symmetrical collapsible teat Flat, drop-shaped symmetrical teats respect the natural development of your baby's palate, teeth & gums, even if the soother ends up upside-down in the mouth. User-friendly silicone teats Silicone is taste & odour-free, so it's more likely to be accepted by your baby. Snap-on protective cap To keep sterilised teats hygienic. Security ring handle For easy removal of the soother at any time. Are the age guidelines important? The soother teats & flanges vary in size, & the age guidelines take this into account. Both the teat & shield of the 0-3 month soother are very small & adapted for smaller babies. Older babies need to have a larger shield. Are Philips AVENT soothers orthodontic? Philips AVENT Soothers have vented collapsible teats & a symmetrical design, ensuring the natural development of palate, teeth & gums. What is included? Silicone Soother 2 pcs Snap-on protective cap 2 pcs