Authentic human rib specimen featuring hand-painted anatomical markings and natural skeletal detail. These limited quality specimens may display imperfections, wear, repairs, or condition variations consistent with educational use.nEach purchase includes one randomly selected rib. Suitable for anatomy study, medical training, classroom demonstration, and osteology collections.nWe believe education is the greatest gift osteology can share and that every human specimen can contribute to the advancement of science. These specimens are provided to us by retired physicians, medical researchers, dental professionals, and former university medical programs. We also work with accredited donor programs. A small sample – often antiques that simply do not qualify for medical/research grade usage – are made available to osteology enthusiasts worldwide so that they may continue to educate and inform.nnThis product requires additional insurance to ensure your package arrives safely. A $25 shipping insurance fee will be added to the cart at the time of checkout.nnSpecifications:nnYou will receive one rib chosen at randomnThis specimen was not prepared by Skulls Unlimited; No further cleaning or repairsnThe photo shown is an example of what your specimen will approximately look like. Each rib is unique and will vary.nAverage Ribs Length 20 cm (7.9 in)nAverage Ribs Width 2 cm (0.8 in)nAverage Ribs Height 2 cm (0.8 in)