Replacement Right and Left Posterior Iliac Crest Inserts - 5 Sets by Nasco Healthcare $321.95 SB52383 Replacement Right and Left Posterior Iliac Crest Inserts - 5 Sets / SB52383 / Cart Title Replacement Right and Left Posterior Iliac Crest Inserts - 5 Sets Product ID SB52383 CheckoutType Cart Add to cart For use with Bonnie Bone Marrow Biopsyâ„¢ Skills Trainer (SB52380U).