Set includes 2 toddler straw cups with 10 oz capacity for water, milk or juice Straw peels open for easy, thorough cleaning With only three pieces: straw, lid, and cup; the Simple Clean cup is easy to clean and assemble. Ensure lid’s lip is pushed down all the way (past ridge on cup) before giving to child. Includes one-way valve to prevent spills BPA free. Great for boys and girls 12 months and up.