Alvin - Academic Gearhead Divider - 5 1/2 inch - The Alvin Economy Gearhead Divider is a 5+ inch friction divider with fixed needle points. This Gearhead Divider has a matte nickel finish that resists stains and tarnishing. Designed for student use and supplied in sheath. Alvin is one of the primary sources for drafting supplies and drawing equipment in the country. Creative Coldsnow is a pround retailer of Alvin graphic arts, drafting and fine arts products.