Jenny Grant, Idah enjoys the weekend like any other child - playing noisy games with her friends.
But unlike most 14-year-olds, when Monday morning arrives Idah heads to work at a biscuit factory rather than school.
She is one of the child labourers in the West Java heartland of Tangerang, the sprawling industrial area 30 kilometres west of Jakarta which supports the rapid growth of the nation's capital.
Idah lives with her grandmother Atji and 10 other relatives in a mud-floor house in the centre of Priok - a village of about 2,000 people surrounded by rice fields and factories.
The factories churn out biscuits, sandals, bags and garments for export and local consumption.
Many of the factories - including big name sports shoe brands like Reebok, Nike, Eagle, and Sportec - are alleged to employ child labourers under the legal age of 16.
Economic necessity has forced children in Priok to leave school and work in the factories, joining an estimated 2.9 million other Indonesian child workers.
"I earn 35,000 rupiah (HK$122.50) a month working from seven in the morning to five in the afternoon. Plus I have to pay the factory 3,000 rupiah a week for transport to work," said Idah, who packs biscuits at the PT Yudiawangi factory.
For adults, the minimum monthly wage in Tangerang is 171,000 rupiah.
Other child workers in Priok say they are driven to work in closed metal trucks with no ventilation.
"If we break any of the biscuits we have to pay for them out of our wages," said Herni, who packs biscuits with dozens of child labourers on a platform above hot stoves.
Most of the children do not have contracts. By hiring on a daily basis the companies avoid paying holiday wages.
At the PT Sumereva Indonusa sandal factory, 35 of the company's 400 workers are underage. Child workers say it is common for their fingernails to fall off with the abrasion of sewing leather.
PT Tae Yung Indo, which sews fashionable long coats for export to Korea, the Philippines and Switzerland, has only three toilets for 60 workers, many of whom are children.
Children must wait until one of three toilet cards is available before they can leave the factory floor.
Young workers in Priok say they have to work to help their parents, who also live in poverty as rice farmers or meatball sellers.