GREEN PRODUCT, SAVE THE PLANET!!!! YOU ARE BUYING 100 CORK RING WITH 11/4"(DIAMETRO)X1/2"(TICKNESS) GRADE EXTRA WITH BORE 5/16" = 8 MM, THIS IS THE BEST GRADE YOU CAN FIND MADE WITH PORTUGUESE CORK. ALL MY CORK RINGS ARE MADE WITH THE BEST CORK ROW MATERIAL.
