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Material is rubber + PU

Caliber: 58R; (Putter universal caliber)

Specifications are 1.0/2.0/3.0/5.0 optional

1.0 size: about 26 cm in length; weight: 66+-3 grams; about 2.5 cm thick;

2.0 size: length is about 26.5 cm; weight: 45+-3 grams; thickness is about 2.9 cm;

3.0 size: about 27 cm in length; weight: 57+-3 grams; about 3.5 cm thick;

5.0 size: length is about 26.5 cm; weight: 87+-3 grams; thickness is about 4.0 cm