DNA Helix Science Necktie Navy Biology Neck Chemistry Tie by Ralph Marlin Science Ties DNA Helix Neckties Navy Molecules Tie Mens Necktie, a great gift for any scientists. 57 Inches long - Standard Adult Size 3.75 Inches wide right before the tip - Standard Width Hand Crafted in 100% microfiber Officially Licensed Three Rooker Necktie You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!