PE;Use your fine motor muscles to screw and unscrew these large plastic nuts and bolts!;20 Complete Plastic Nuts and Bolts Set - 40 Pieces - Includes 4 different shapes - colors & shapes will vary;Improves manual dexterity, hand-eye coordination, color recognition and pairing, shape sorting, increases attention and focus.;Create games and activities with these nuts and bolts to create a fun and exciting way to learn!The best part is that your little ones won't even notice that they are learning as they play.