Vellum E #20 Technical Paper/Light Paper 16 lb: Contains NO FUGITIVE OILS nor RESINS. Offers strength, durability and prestige that only 100% cotton fiber sheets can offer. Recommended for coying on exerographic copiers and plotting machines. Pen & Ink including CAD applications. Crack resistant, durable/archival and requires no special handling. Available in Packages, Reams, and Rolls.