Stephen Hawking 'Rocking with Hawking' 5" Full Color Sticker Size: 4.5" x 4.5" Image Design: Dr. Stephen Hawking rockin it in his smooth ride wheelchair on 21 inch rims! Material: Premium Adhesive Sticker Paper Longevity of Sticker: This full color sticker is made to last 5-6 years Color: Sumarine Blue, Baby Blue, Neon White