All the proprietary hardware to build your own Model C ROV. This set of 3D printed parts includes body components, weight containers, propellers, and an internal electronics cradle. All 3D Printed  parts in the assembly manual’s parts list are included here, but acrylic domes are not included.We print this hardware to order, so please allow 3-4 weeks for your item to ship. As with all our ROV kits, the wait is worth it!!!