I started working with an ST roof system back in 2000, it was one of the first ones Prolyte made. I've been using Prolyte ever sinceJon Reeves JDR Rigging, Finland
Book Corner 40D/VCatalog number: BOOK-40D/V - Item code: 111510005
Book corners are used to create flexible angles; using a hinged connection, any angle can be achieved. Once the correct angle is determined, the book corner can be fixed by using the fixing arm. Book corners are not designed as load bearing component, loads should be supported at both sides of the corner.