Buy Top Shelf Extracts Shatter Online. Top Shelf Extracts is a Canadian cannabis extract creator. They are proud of their processes and aim to have a consistent product in every batch! A brittle, glasslike cannabis extract with a tendency to snap when handled. Shatter is named for its breakability, like broken glass, and is favored for its ease in handling while dabbing. It requires long, delicate purging cycles to properly remove all solvents used in the manufacturing process.