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https://detail.1688.com/offer/611815608988.html?spm=a2615.7691456.autotrace-offerGeneral.19.2e492d7bKFZCP5

Material is rubber + PU

Caliber: 58R; (Putter universal caliber)

Specifications are 2.0/3.0/5.0 optional

2.0 size: length is about 26.5 cm; weight: 41+-3 grams; thickness is about 2.8 cm;

3.0 size: length is about 26.5 cm; weight: 57+-3 grams; thickness is about 3.5 cm;

5.0 size: length is about 26.5 cm; weight: 84+-3 grams; thickness is about 4.0 cm;