GREEN PRODUCT, SAVE THE PLANET!!!!
YOU ARE BUYING 100 CORK RING WITH 1"(DIAMETRO)X1/2"(TICKNESS) GRADE EXTRA WITH BORE 1/4", THIS IS THE BEST GRADE YOU CAN FIND MADE WITH PORTUGUESE CORK.
MY GRADE SISTEM IS:(FROM BETTER TO LOWER GRADE)
FLOR, EXTRA, A+, A AND B