The Cuisenaire Rods Learning Kit is designed for primary level students and includes the Idea Book for Primary, 2 rod racks, and a poster. Created by ETA/Cuisenaire, this educational toy helps children learn about mathematics through the use of colorful rods. The idea book provides engaging activities and exercises for students to explore and understand mathematical concepts in a fun and interactive way. This learning kit is a valuable tool for developing mathematical skills in young learners. The rods are made of plastic.