Everything you need for that DIY hip replacement. Superb collection of Vintage Hip Replacement Instruments which consist of a Concentric Reamer for shaping the acetabulum (socket). An Eccentric Reamer for shaping the femoral head (ball). A new titanium Femoral Head or Hip Prosthesis. A Zimmer Rasp File to shape the cavity made in the femur which holds the new hip prosthesis, a Bone Lever by Arnold & Son used to separate the old ball & socket and an Arthroplasty Bone Gouge. The Reamers & the Bone Gouge are all by makers Down, England.