Adjustable Kettlebell - 5-in-1 Set

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Size: 30 LBS


Our kettlebells are perfect for home gyms, as they do not take up too much space, and you can perform a full-body workout with just one piece of equipment. Our kettlebells have 5 accurate weight adjustments in increments of 5, ranging from 10-30lbs for the 30lb kettlebell, and 10-40lbs for the 40lb kettlebell.

Click “Add to Cart” to get your own adjustable kettlebell now!


AVAILABLE IN 2 SIZES | ADJUSTABLE KETTLEBELL. With weight options ranging from 10-30lbs for the 30lb kettlebell and 10-40lbs for the 40lb kettlebell, the Polyfit Adjustable Kettlebells serve as the perfect all-in-one fitness solution for various workout routines and skill levels.

EASY TO ADJUST | 5 KETTLEBELLS IN 1. The user-friendly design of the Polyfit kettlebell allows you to change the weight settings in seconds, providing a seamless transition between exercises without interrupting your workout flow. The kettlebells feature 5 accurate weight adjustments, allowing you to progressively challenge yourself as you advance in your fitness journey.

NON-SLIP HANDLE | MATTE FINISH. Engineered with your comfort in mind, the Polyfit kettlebell's ergonomic handle ensures a secure and comfortable grip, reducing hand fatigue and preventing slips during intense workouts. The matte finish gives them a sleek and modern look, making them an excellent addition to any workout space.

DURABLE CAST IRON | SOLID CONSTRUCTION. Crafted from premium-grade materials, the Polyfit adjustable kettlebell is built to withstand rigorous workouts, ensuring it remains a reliable fitness companion for years to come.

COMPACT | SPACE-SAVING SOLUTION. With its adjustable weight feature, the Polyfit kettlebell effectively replaces multiple fixed-weight kettlebells, saving you valuable space and money.

Polyfit Guarantee

All of our products come with the Polyfit Guarantee.  We stand behind our products 100% so you can feel confident that we will have your back if there is an issue.  

We have a 30-Day Return Policy (for any reason), plus an extended warranty to the original user as described below.  

Polyfit warrants to the original user that the Polyfit product will be free in material workmanship or defects for a period as specified below from the date of purchase.



Weight Plates

1 Year Warranty

Squat Wedge

1 Year Warranty

Weight Vests

180 Day Warranty


180 Day Warranty

All Other Products

90 Day Warranty

If there is a defect in workmanship or if you actually wear our stuff out, Polyfit will fix or replace (at our discretion) your item.  For instructions on the return process, see our Refund Policy.


- $5.00 Standard Shipping for all USA orders.
- Most US-based orders are shipped from our warehouse within 24-48 hours for maximum efficiency.
- Our product will arrive within 4 to 7 Business Days.
- We offer Expedited Shipping for $12.00, which will arrive within 3 Business Days.
- Currently, we do not ship to Alaska, Hawaii, or outside the United States.

For eligible products on Polyfit, Amazon Prime members can now enjoy free shipping and free returns on eligible items. Simply click "Buy with Prime" on the product page.  Learn more about Buy with Prime.