Alvin - Blueprint Tote and Wrap - The Alvin Blueprint Tote and Wrap is ideal for easy transportation of rolled documents and tubes. Adjusts to hold items between 2+ inch and 5 inches in diameter. Made of durable black nylon and features twin Velcro strips that fasten tightly and a convenient carry handle. Two per pack. 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.