Decotacks 7/16" Pearl Shape Thumbtacks for bulletin and cork boards 25 Pcs/Pack DWPT(white) Head Size : 7/16" (11mm) *** Shank Length : 5/16" (8mm).. They are very beautiful and looks like jewels, They are made of high quality Resin diamonds.. They are NOT real Pearl... Mechanical Connection between Base & Diamond, No Glue Used!!! Thumbtack, can use on Bulletin/cork Boards 25 Pcs in original sealed boxes...