Kodomo Challenge Trial DVD Set All working. Set of 20 DVDs. Some are new and unused. This DVD set is packed with fun content for children. A multi-disc set of the TRIAL DVD series, themed around children's education and entertainment. - Type: DVD - Target age: Children - Contents: Education & Entertainment - Series name: TRIAL DVD - Quantity: Multiple - Language: Japanese - Features: Uses animated characters - Themes: Play & Learning Thank you for viewing.