Biopsy kits containing Michel's Solution will be sent via 2 day FedEx delivery and will include a specimen container filled with Michel's solution for acquired specimen, a specimen container filled with 10% Neutral Buffered Formalin for accompanying specimen, submission form, other pertinent documents, and a letter to disseminate to your patient regarding billing. Also included in the kit will be a pre-paid FedEx air bill for the return of the specimen to our lab for processing..