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Hello, I am looking for some options to clean the bottom side of the inverted rubber, the part right next to the handle where the details of the rubber are marked (e.g Butterfly Tenergy 05, the Butterfly logo, ITTF, serial number). The dust will sit between the letters and it will harden there...

Today i found some of the best blades i played with,and that i though that were lost for ever,when i was organizing somethings here! They are pretty old ,1 with 20 years ,another with 15. Got me some good nostalgy,so hope it gets you the same :) Do you remember this? Leave your thoughs please...