Chiseled abs are a dream for many dieters. While they’re not a realistic goal for everyone (your genetics plays a part in whether or not you can develop visible ab muscles), most people can get them by losing enough body fat and doing the right exercises.

The best ab-ripping exercises are variations on crunches and leg-lifts. Try these five great moves for sleek abs: The Bicycle Exercise; Vertical Leg Crunch; Long Arm Crunch; Reverse Crunch; and the Plank Position.

All of those exercises have been listed by the American Council for Exercise as highly effective ways to target your abdominal muscles. None of them require extra equipment, so you can do them in the comfort of your own home. A quick online search will turn up step-by-step guides with photos.