The Iron Man Pelvis Armor. Part 5 of 5 individual parts, sold separately. When all 5 parts are combined, they will create one pelvis armor piece for the Iron Man mark 4 suit. Additional parts you will need are Iron Man Pelvis: Front Left, Front Right, Back Right, and Bottom. There are tabs to interlock and combine the pieces together. Designed to print at a thickness of .8mm, (minimum for Strong Flexible Plastic is .7mm). This saves on printing costs and WILL need some reinforcement on your end. Most people use fiberglass resin. WARNING: Please take measurements before ordering to be sure the pelvis will fit.