Please comment and ask questions before purchasing, as customers may misunderstand the product description. ■ Only for those who purchase both ① and ② simultaneously. 5000 yen for one, 10000 yen for two / total 30kg Hole diameter / Φ28mm (for Φ28mm shafts only) * We are sorry, but we cannot offer a discount. ※ Please note that items not shown in the photos or not listed in the above accessories section are not included.