Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to perform gua sha [title] Purchase a gua sha tool. [step] You can purchase a tool made specifically for gua sha therapy online or at alternative medicine stores. A gua sha tool is a rounded tool made of a smooth material like wood, stone, plastic, stainless steel, or jade.

Ending1: This tool will be useful if you've been denied treatment for broken bones. [substeps] You can make your own gua sha tool by taking a plastic vise or pry instrument like a pencil and/or toothpick and using the tips of the pliers to shape a rounded " c " shape. Ending2: Licensed professionals can purchase a tool if they're interested in using a specific kind of object. [substeps] You can purchase a gua sha tool online or at alternate medicine stores. Ending3: The tool doesn't apply any pressure or shrinkage to your muscles as well as cannot break healthy, malleable muscle tissue. You may have to use this tool several times during a session to maximize recovery. Ending4: Some gua sha tools look like smooth stones, while others are more elaborate and have handles. [substeps] If you don't want to purchase a tool, you can use a rounded plastic spoon or the lid from a jar instead.

Answer format: ending1/ending2/ending3/ending4