product descriptionThe new collar transparent and odorless transparent polymer materials， bright colors， generous style， each baby is caring Anti-back eccentric design:Let the baby's head slightly forward， while the rear buoyancy greater than the front， not water. In order to achieve optimal swimming posture， let your baby travel more fun. Avoid ears while swimming because the water baby back and lead to improve safety. Pentagram and unique inner curved front design and smooth with a chin (down bar where) so that the baby's chin， neck and head more comfortable. Avoid baby young neck injury. Let your baby more comfortable when swimming， the center of gravity is more stable.Specifications: 38 * 38cmA. Please inflatable swim ring to 80%;B. Best swimming time: Nurse after 40 min / 10-30 min swim;C. Adults need when the baby swimming accompanied;D. away from the edge and chemistry.Packaging DetailsUnit Type:sheetPackage weight:0.190 kg (0.42lb.)Package Size:10 cm �� 10cm x 5cm of the (3.94in point ��x3.94in point ��x1.97in)