[name] opening round wood base

[unit] a

Specifications: 1 about diameter 4cm， diameter 5.7cm， thickness is 1.5cm， weight 25 grams

About 2 5cm diameter， diameter 6.5cm， thickness is 1.6cm， weight 36 grams

About 3 6cm diameter， diameter 7.5cm， thickness is 2.1cm， weight 75 grams

About 4 7cm diameter， diameter 8.1cm， thickness is 2.3cm， weight 105 grams

About 5 8cm diameter， diameter 9.1cm， thickness is 1.8cm， weight 106 grams

About 6 9cm diameter， diameter 10.5cm， thickness is 2.2cm， weight 165 grams

About 7 10cm diameter， diameter 11.5cm， thickness is 2.3cm， weight 198 grams

About 8 11cm diameter， diameter 12.1cm， thickness is 2.4cm， weight 264 grams

About 9 12cm diameter， diameter 13.1cm， thickness is 2.2cm， weight 208 grams

About 10 13cm diameter， diameter 14.9cm， thickness is 1.8cm， weight 268 grams

About 11 14cm diameter， diameter 15.5cm， thickness is 2.1cm， weight 335 grams

About 12 15cm diameter， diameter 16.5cm， thickness is 1.8cm， weight 336 grams

(hint: the base of each batch of the same type of the thickness and surface quality is slightly different， mind the careful shot! )