Includes two acrylic lenses (one each of double convex and double concave) and three mirrors (one each of convex, concave and plane). Packed in a cushioned wood storage box. Shipping Details Shipping Type: parcel Free Shipping: true Specifications Maximum Age: None Maximum Grade Level: None Allergens: Contains No Allergens Certifications: Not Applicable Grade Level: Grades 5-12 SUOM Description: Each Brand Name: United Scientific Description: Optics Set