Check the listing for details. Molecular Visions Darling * The Flexible Molecular Model Kit * Organic Chemistry. Condition: Used. Listed at 15.00 USD. Kit is preowned. Comes with everything pictured. Excellent resource for organic chemistry classes. Non-smoking home. I ship quickly. Check out my other auctions. Feel free to make me an offer! I am a longtime (25+ years) eBay seller with excellent feedback. Darling Models Molecular Visions (Organic, Inorganic, Organometallic) Molecular Model Kit #1 by Darling Models to accompany Organic Chemistry 4th Edition ISBN-13: 978-0964883710, ISBN-10: 0964883716 Explore the world of organic chemistry with the Molecular Visions Darling * The Flexible Molecular Model Kit. This kit by Darling Models is perfect for educational purposes and allows you to visualize the molecules in a unique and interactive way. The kit includes a flexible molecular model of Darling, along with various other organic chemistry compounds. The kit is from 1996 and is a great addition to any science and nature collection. It falls under the category of Toys & Hobbies and is perfect for those interested in educational toys. The kit is also a great gift for anyone interested in organic chemistry or microscopes and chemistry.