The San Francisco-Oakland Bay Bridge and all six NASA space shuttles were sketched on this legendary Clearprint® vellum. 100% new cotton vellum field book can be used with various media — oil, acrylic and watercolor paints, paint markers, pastels and charcoals, pencils, inks, etc. Its uniquely delicate, transparent appearance is combined with an extremely durable construction that resists yellowing, cracking or ghosting, making it a remarkable alternative to traditional fine art papers.