Shinwa Japanese Aluminum Saddle Layout Square Product size / length: 168 mm, width: 63 mm, height: 73 mm Model: 62113 Product weight: 90 g. Package size / length: 210 mm, width: 100 mm, height: 80 mm. Package weight: 115 g. Shinwa Rules Co., Ltd. (Shinwa Sokutei) is the leading manufacturer of measuring instruments having the largest share in Japan in the field of metallic scales.