These are a pair of replaceable abrasive cylinders for the SkateMate PRO.
When your present cylinder wears out, you can open your sharpener and put in a new one.
Abrasive grades
– 100 has large granules imbedded: recommended for well-worn blades.
– 120 has finger granules: recommended to remove nicks and touch up blades.
Please Note!
Turn both of the black adjustment wheels simultaneously to open your SkateMate just enough to remove the inner holder. Do not turn the wheels again until the holder is back in place. Simply remove the worn cylinder and put in the new one. Then, carefully turn the wheels the other way to close your SkateMate.

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