Spark more creativity! Let's try something new! Educational Insights toys and games provide opportunities for self-expression, creativity, and imagination, helping kids identify new interests, appreciate their own strengths, recognize and overcome challenges and build their self-confidence. Pop into early learning! Budding builders use a hand powered rivet tool and rivets that "pop" when they place them to complete the patterns on the colorful cards with this pop-n-play construction activity set! Details: Assorted colors 9.6" x 9.25" packaging size 53 pieces Supports S.T.E.M. learning use hand powered rivet tools Suitable for ages 3 and up Contents: 40 colorful rivets 10 double-sided pattern cards 1 rivet popper 1 rivet remover 1 activity board with handle