PLEASE BEFOR BUYING READ THIS WITH CAREFUL: AS YOU CAN SEE IN THE PICTURES THIS RINGS HAVE A GREAT QUALITY, BUT THEY HAVE "BLACK STAINS/BLACK SOPTS" THIS ITEN ARE SELL AS YOU SEE IN THE PICTURES. GREEN PRODUCT YOU ARE BUYING 105 CORK RINGS 11/4"X1/2" GRADE FLOR WITH BORE 1/4" IF YOU HAVE ANY QUESTION PLEASE CONTACT ME BEFOR BUY FREE SHIPPMENT FOR WORLDWIDE