Do you have additional parts or accessories for the BIG Step-by-Step? February 11, 2021 18:17 Updated For parts and accessories please visit our website. Related articles How do I clear all messages off the BIG Step-by-Step? How Do I Attach the Universal Shoulder Strap to the BIG Step-by-Step Getting Started With BIG Step-by-Step Speech Device What is the size of the mounting bolt of the Universal Mounting Plate? How much record time is available on the BIG Step-by-Step?