Burton M6 Channel Inserts (4 Pack) The Burton M6 Channel Inserts (4 Pack) are replacement inserts for Burton&';s Channel mounting system. This four-pack is designed for replacing missing or worn Channel inserts and keeping your snowboard binding mounting setup ready to go. Finished in black, they&';re a simple replacement part to keep on hand for board setup and maintenance. Details Type: Replacement Channel inserts Size: M6 Quantity: 4 inserts Color: Black