A variation of petrissage is skin rolling petrissage, where the client's skin and superficial fascia is raised and compressed. Connective tissue massage, also known as Bindegewebsmassage (in German), has skin rolling and myofascial release as one of its key elements. Skin rolling can be used on bony sections, which is uncommon as many massage techniques cannot be used on body sections. Some clients believe that skin rolling is painful in the beginning, so the therapist should be gentle at first. In fact, the client may experience bruising from this if the massaging goes on for extended periods of time, as the bony areas are vascular and sensitive. The therapist should take off all extra lubricant and apply hot packs to the skin and fascia. Hold unto the skin and prepare the skin and fascia before compressing the tissue. Then with the fingers scoop of the skin and roll the skin just like rolling a pencil. Repeat the rolling movements until the selected section of skin has been massaged.