Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to punch a speed bag [title] Adjust bag to proper height. [step] The belly (the fattest part) of the bag should be level with your mouth or chin. Many people hang their speed bags too high, and this will result in unnecessary muscle strain and poor technique.

Ending1: [title] Develop short-sleeve or long-sleeve sleeve gloves. [step] If you plan to punch close to the ground, consider using gloves that are too snug or tight. Ending2: [title] Get in the " standard " speed bag stance. [step] Face the bag with your feet apart at about shoulder width. Ending3: For safety, find a bag that is tall, flexible, and without rips. [substeps] Sturdy bags are far better for throwing and increasing the impact. Ending4: [substeps] Try resting the bag at a height optimal for you. A proper bag position for a speed bag is three to five in (7.6 to 15 cm).

Answer format: ending1/ending2/ending3/ending4