All are just over 9″ in length. I am not sure specifically what these are, so hopefully the pictures will help. They are from an OB-GYN office that closed. My reference, plastic tub, bookshelf in yellow building (back corner.).

BACKHAUS 5 1/4″. We own and operate a modern 60,000 SQ foot Facility in Florida and a 66,000 SQ foot facility in Georgia. Item is Used and May Show Signs of Previous Use, Such as Scratches, Markings and Discolorations.