strap in certain applications of this invention the clip shown in fig5 has a first row of teeth 23 a along one side of lower jaw or articulated arm 25 and a second row of teeth 23 b along the opposite side creating a cavity 27 between the rows upper jaw 29 has the same features and is joined in one piece construction to lower jaw 25 through living hinge 31 see fig7 a clasp opposite the living hinge has a hook 33 and a catch 35 that locks fig8 and 9 the clip in a closed position when desired when in a closed position the teeth of the lower jaw interdigitate with the teeth of the upper jaw as perhaps best shown in fig8 alternatively although less preferred the upper and lower teeth may be vertically aligned such that there is cusp to cusp contact when the clip is closed each jaw may have two parallel straight line rows of teeth as disclosed or may have an array of teeth in a different pattern the laundry collar may have a label 24 located near the buckle that is suitable for permanent marking such as with a permanent or indelible marker to allow the user to personalize the collar with personal identification that will not wash off one example label shown in fig5 and 6 is approximately 1 u00be u2033 long u00d7 1 u2033 high and is sewn onto a free end 26 of the strap which may extend approximately.