Our grass fed beef canoe marrow bones. You get about 4-6 pieces around 4-5 inches in length. Approx 2 lbs per pack. 
These are best to roast and then eat the marrow. Use them after for bone broth but these bones are not the perfect bone broth bone. Knuckle bones are the best for bone broth. 
Price is an estimate and total will be based on price per lb x the actual weight