My 18-month-old can actually grip the knobs herself, which surprised me since other puzzles she just batted at. The pieces are thick enough that she hasn't chewed through the paint yet, and she's tried.
Eli★★★★★
My 18-month-old can actually grip the wooden knobs on her own, which was the whole reason I bought these. The pieces are thick enough that she doesn't try to mouth them, and she's already matching the pets to their spots after a week.
Jacob K.★★★★☆
The chunky wooden knobs on these are perfect for my 2-year-old, who still struggles with regular flat puzzles. I wish the fish bowl scene had a fourth piece since she breezes through the three pets in about a minute, but for the price it's a solid starter set.