The Adjustable Bowflex Kettlebell That Amazon Shoppers Say Is 'Perfect for Workouts In Small Spaces' Is 40% Off

If you haven't incorporated a kettlebell into your fitness routine, it's time you did. These bell-shaped weights help build endurance and strength in your legs and upper body while improving grip strength, making a full-body workout possible with just a single tool.

Not to mention, they're approved by fitness experts. "With kettlebells, you can work on strength, endurance, and conditioning, all with one really simple piece of equipment," Nike Master Trainer Alex Silver-Fagan previously told Shape. The downside? Using multiple kettlebells for both lightweight and heavyweight exercises can clutter your space. This is why having an adjustable kettlebell is a must for any home gym, and this highly rated one from Bowflex is currently 40 percent off.

With a turn of a dial, the Bowflex SelectTech 840 Kettlebell seamlessly transitions between six settings, changing the resistance from 8 up to 40 pounds. The space-saving design and adjustable functionality eliminate the need to buy additional kettlebells as you advance in weight class and allow you to quickly switch between heavier or lighter weights whenever you start a new exercise. (Psst, shop for more adjustable kettlebells here.)

Buy It: Bowflex SelectTech 840 Kettlebell, $119, was $199, amazon.com

The Bowflex kettlebell is 8.8 inches by 12.5 inches and also comes with a small, portable base that is compact enough to store under a desk or chair when not in use. What's more, the ergonomic handle is wrapped in heavy-duty molding, so you don't have to worry about blisters or dropping it. As an added bonus with your purchase, you will have access to 24 trainer-led workout videos that are meant to challenge you at every lift, squat, and lunge. (

The kettlebell has more than 2,500 five-star ratings on Amazon, and customers laud it for saving space, being easy to use regardless of whether you're a novice or weightlifting pro, and being worth the money, even at full price.

One shopper wrote: "I always liked the things you can do with kettlebells but I never liked having to have so many until this Bowflex came into my possession! I love that I can decrease the weight whenever I need to without having to buy extra bells and have them lying around, and if I don't need them anymore, they would be collecting dust. This just solves all the problems."

Another said that it's perfect for workouts in small spaces: "I live in a city apartment with limited space, so I just don't have room for a whole rack of kettlebells. This thing is great — it has a tiny footprint (fits under a chair), it's easily adjustable, and it feels very solid. You do have to make some allowances for its shape — it's oblong, not round, so things like swings or anything around your head (like halos) involve tweaking your form a bit, but it's not a big deal. Overall a great purchase and would definitely recommend."

With many people jumping on their fitness goals in the new year, you can bet at-home exercise equipment is going to be flying off the shelves. And while this adjustable kettlebell is already a great deal since you're basically getting six weights for the price of one, you can save about $80 on it right now thanks to an Amazon deal. But, the sale won't last forever, so get your Bowflex SelectTech 840 Kettlebell while it's still 40 percent off.