Rigid Polyurethane Bone Sawbones® Second-Generation composite bone is a combination of e-glass cloth, mat, and roving, layered around a rigid polyurethane foam core, which models the cancellous material. Standard bone models are manufactured with a solid rigid polyurethane foam cancellous core material, unless cellular rigid polyurethane foam is specified. Second-Generation bones do not have an intermedullarly canal. Information provided by Sawbones. |