Children Bicycle (Kids Bike, MTB)

My kids (8-12 year old) used the 7-speed MTB bike for 2 years after buying new one.
I am selling the bikes for 50$. The original price 2 year ago was $269.95.
-The brand is Raleigh.
-24 inch geared
-Age:9-12 year
-Height: 54-65 inch