Electronics Trainer Labs come with Trainer, Electronics Fundamentals 2nd Edition Courseware (4 Books), Digital Electronics Courseware (2 Books), and Small Parts Kit. Specific models include PB-507 Advanced Analog & Digital Electronic Design Workstation, PB-505 electronics trainer for electronics instruction and design, and PB-503 for all levels of electronics instruction and prototyping. Also available, PB-503C consists of PB-503 mounted in heavy-duty, portable, aluminum carrying case.