I think the size change from size one to size two might come at 15 pounds not the 18 pounds recommended but baby shapes vary of course, so weight recommendations are always a rough guess. (greenmountaindiapers.com)
Easy to clean, dry quickly, fold up to easily slot in your bag, has many size options to fit the necks of babies all shapes, sizes and ages. (amazon.co.uk)
For instance, if baby plays a shape game on the tablet, later show baby some shape blocks and let them match the blocks to the correct shaped holes on a sorter toy. (thebabycorner.com)