bone button button holes buttoning buttons clothing concave convex covered decorative different display fabric fasteners fastening form four holes four-holed groove grooved hole holed holes materials pearly plastic rim rimmed rims shape shaped shapes shell shiny size sized Sizes texture textured textures two holes two-holed variety white children children’s buttons color colored colorful colors colour coloured colourful colours novel novelty kids pair sea Spain two wall bookmark cartboard cutout isolated label labels paper ribbon string tag transparent. price twine