Made of Polypropylene plastic with Steel bearings;Multi-function writing instrument and tri-spinner made of Polypropylene plastic with Steel bearings; White body with 3 different chisel-tip highlighter colors with caps to match (one highlighter each in Red, Green, and Yellow); Spinner feature designed to relieve stress and anxiety; Approx rotation time is 35 seconds; Product Size: 3.125″ w x 3.125″ h x 0.5″ d;