Sold as single sachets, a packet of 6 sachets or a 50gm Tube. Surgi-gel is a sterile, grease-less, transparent, water-based, non-staining, non-irritating lubricating gel that is recommended for specific surgical and gynaecological lubrication as it adheres to instruments such as insemination tubes and rectal thermometers better than normal lubricating gels.