Kourtney Kardashian Says This Is Her Secret Weapon For An 'Instant Butt Lift'

Kim Kardashian may have called sister Kourtney Kardashian the "least interesting one to look at," but when it comes to her body? The mother-of-three is showstopping and has one of the best figured within the Kardashian-Jenner clan!

Of course, it's all about the famous family backside and we found the secret weapon Kourtney says she uses for her flawless figure.

The 40-year-old is in the best shape of her life and Keeping Up with the Kardashian fans know she's been putting work in the gym. Whether she's squeezing in a workout with sister Khloe or feeling the pain with Coach Don, she's recently revealed her favorite piece of equipment to tone her booty.

The Bosu Balance Trainer is how she gets an "instant butt lift," according to her site Poosh.

See it: Grab the Bosu Balance Trainer with prices starting at $99 at Amazon!

This Bosu balance trainer doesn't just work, it works well! Whether we're looking to tone and strengthen, lose some weight or simply get fit, it does it all!

We're loving how this trainer is all about convenience. The circular shape is small enough to fit into any living room corner, garage or even backyard gym. At-home workouts have never been easier or more effective.

In a recent video, Kourtney and Khloe take the backyard — to work out with their trainer, Coach Don. The sister duo showed everyone just how easy it is to achieve that infamous Kardashian with this tool. In five simple workouts for five minutes, it's the instant booty lift we're all looking for.

Now, all that's left to do is buy this Bosu ball and follow along to Kardashian's video!

See it: Grab the Bosu Balance Trainer with prices starting at $99 at Amazon!

Not your style? Check out additional gym equipment also available at Amazon! 

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