This is the nylon block inside the cabinet that mounts the carry handle ends, and strap clip retainers. JVC lists this part as JVC P/N# V31131-005 Supporter. It is 3D printed in a stronger nylon material and is a drop in replacement for the factory part. For an idea of what or where this item installs in the boombox, enlarge the additional image below. This image shows the item, which is identified as part# 21 in the diagram. It is symmetrical so it can be installed on either side by simply flipping it. Please allow estimated 3-weeks manufacture time before we ship this for you. We will apprise you of status after receiving your order. Pricing All pricing which includes shipping is intended for USA customers only. For all international customers, please send us a message first so we can quote the proper shipping charges.