More Details About the Nanlite Gobo Set 1: This is a collection of 10 gobo discs that are fully compatible with the Nanlite PJ-BM Projection Attachment. It includes 3 separate window types: arched, double, and angled, and useful patterns like a linear array and other breakups. Use them to create compelling backgrounds, convincing shadow and reflections, and countless other effects. Specifications: Compatibility: B-Size Gobo. Includes: 2-Year Limited Warranty (Extend to 3-Year Limited With On-Line Registration)