小小 + 的 + Noun
The reduplicated adjective 小小 (xiǎoxiǎo) means 'tiny,' 'small,' or 'little,' emphasizing smallness in a vivid or affectionate way. Reduplication of 小 intensifies the sense of diminutiveness and adds a descriptive, literary flavor. 小小 is often placed before 的 and a noun as a modifier.
小小的一个举动温暖了很多人。
xiǎoxiǎo de yīgè jǔdòng wēnnuǎn le hěn duō rén.
A small gesture warmed many people's hearts.
她手里拿着一个小小的礼物盒。
tā shǒu lǐ názhe yīgè xiǎoxiǎo de lǐwù hé.
She was holding a tiny gift box in her hands.
别看他小小年纪,懂的东西很多。
bié kàn tā xiǎoxiǎo niánjì, dǒng de dōngxī hěn duō.
Don't let his young age fool you — he knows a lot.