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Brass plated iron No.156A : 700 yen
Since it is a hard material, it is also used to clean tweezers.
Nylon(Green) No.156B : 700 yen
Pig's hair(Black) No.156C : 700 yen
Brass No.156D : 800yen
Softer 156C = 156B < 156D < 156A Hardar
Basically No.156A is used to clean Jin and shari.
But, He uses No.156A to clean the tweezers because No.156A is the hard material.
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