The use of 4KNOBS requires adult supervision. Supervise children at all times during use. Children under 10 years old must be supervised when using 4KNOBS.

WARNING: Use of 4KNOBS in a manner other than described below can lead to serious injury.

4KNOBS is NOT designed for use of hitting ANY BALLS OR ANY OBJECTS. 4KNOBS is only to be used for “dry swings” and practice swings into or against the air.

1. 1. Make sure no one is near the person swinging 4KNOBS, hereinafter referred to as “hitter”.
   2. Only use the 4KNOBS trainer in an open area – free from obstruction, other people, and breakable objects, hereinafter referred to as a “safety clearance zone”.
   3. Never swing 4KNOBS arm sling towards anybody or in the direction of anyone.
   4. Always swing the 4KNOBS arm sling toward an open and unoccupied area, or towards a fence or a wall. Again, nobody should be in the “safety clearance zone” while the hitter is swinging 4KNOBS.
   5. At no time should the hitter ever make contact with any other object while swinging 4KNOBS. The hitter should only swing 4KNOBS into or against the air in front of them in the “safety clearance zone”.
   6. Any contact with any object by the hitter of the arm sling of 4KNOBS will cause breakage and render this device unsafe for any future use.
   7. Before each use of 4KNOBS, the adult supervision &/or the hitter should always: (a) inspect 4KNOBS for any damage or signs of failure; (b) make sure all attachments are tightened properly; (c) make sure that the “safety clearance zone” is created, observed, and followed; (d) make sure that the 4KNOBS is not going to be swung towards or in the direction of anyone.
   8. The arm sling should never be swung in the opposite direction or towards the hitter holding 4KNOBS. The hitter should NEVER snap the arm sling back in the direction of/towards the hitter. Snapping the arm sling in the wrong direction or opposite direction of a baseball or softball swing can cause injury to the hitter. In other words, the hitter hitting themselves with the arm sling by swinging in the wrong direction.
   9. Do not modify or alter 4 KNOBS in any way.

Safely and effectively utilize 4KNOBS to improve your baseball and softball hitting skills.