[ 短款+6个替换头 ]
[ 短款+12个替换头 ]
[ 短款+24个替换头 ]
[ 长款+6个替换头 ]
[ 短款+长款+12个替换头 ]
[ 短款+长款+24个替换头 ]
[ 12个替换头[不含手柄] ]