Learning Resources Measuring Worms, 72 Assorted Color Worms

Learning Resources Backyard Bugs Counters, Educational Counting and Sorting Toy, Set of 72

Wiggling Worms at Work (Let's-Read-and-Find-Out Science 2)

Learning Resources All About Me Family Counters, Assorted Colors and Shapes, Set of 72, Ages 3+

Learning Resources Domestic Pets Counters, Educational Counting and Sorting Toy, Set of 72

U.S. Toy 1884 Worms

Learning Resources Mini Motors Counting and Sorting Fun Set, Early Math Skill, Set of 72, Ages 3+

U.S. Toy VL130 Stretchy Earthworms(36 Piece)

It's a Good Thing There Are Earthworms (Rookie Read-About Science: It's a Good Thing...)

Garden Wigglers: Earthworms in Your Backyard (Backyard Bugs)

Learning Resources in The Garden Critter Counters Math Manipulatives, Set of 72