JFIT Slam Ball


About this item

  • TAKE YOUR WODS TO THE NEXT LEVEL: Cross training is founded on innovation and variety – and our slam ball helps transform your WODS and quickly advance cross training levels, all while letting you reap all of its benefits with unprecedented ease.
  • BOOST YOUR AEROBIC CAPACITY: Slam ball workouts tone the cardiovascular system, enhance circulation and dramatically improve your strength and endurance. By moving at a high speed, you push your body towards producing more power – and FAST.
  • BUILD MUSCLE MASS & ATTAIN PERFECT BALANCE: Slam balls add a layer of resistance to exercises which traditionally rely on bodyweight. They naturally increase muscle mass and improve posture and balance, through aiding in regulating movement patterns.
  • ENGINEERED FOR PRECISION & DURABILITY: Simply the highest quality slam balls on the market. Our slam balls have gone through over 10 re-designs throughout the years, aiming for perfection and both indoor and outdoor exercise precision.
  • CHOOSE YOUR SIZE: Our 9" diameter balls are offered in 10-lb, 15-lb, 20-lb, 25 lb, 30 lb, 35 lb, 40 lb and 50 lb sizes. Get one now according to your strength level and come back to buy more, as your endurance increases!


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Slam through your next WOD! The practice of ball throwing has been an integral part of fitness since the ancient times. Cross training has popularized the method and JFIT has perfected it, by creating the best dead weight TREADS slam ball you could ever have! Still wondering what the difference is, Medicine Ball vs. Slam Ball? In essence, slam balls are designed for speed and high velocity impact. They also feel like dead weight, provide no bounce or elasticity; and help you perform a wider range of exercises. No medicine ball can sustain the kind of handling a slam ball does, as you can slam it to the ground, thousands of times, without it losing its shape or breaking. What makes our TREADS Slam ball stand out? It all starts with choosing the finest quality materials and ensuring each ball upholds our high manufacturing standards. Featuring an ultra-thick textured tread surface for easy, slip resistant grip and steady hold, our slam balls are expertly weighted and build to last, becoming your new WOD staple. Slam those benefits – by challenging every single muscle group in your body, slam balls enhance your agility, balance, and strength, while they improve your reflexes, coordination, posture, and cardiovascular system. Ideal for solo or partner exercises, our slam balls are perfect for rotational ab work, chest presses and passes, while they are also great for decompressing after long, stressful days! Our premium 9” diameter dead weight TREADS slam balls are a perfect addition to your daily workout routine. Easily clean with mild soap and wipe with water.

Product details
  • Is Discontinued By Manufacturer : No
  • Product Dimensions : 10 x 10 x 3 inches; 30 Pounds
  • Item model number : 20-0075
  • Date First Available : May 16, 2013
  • Manufacturer : J/Fit
  • Best Sellers Rank: #253,885 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
    • #461 in Exercise Balls

Shame on me for not reading more of the reviews before ordering this. It's just a rubber kick ball partially filled with sand. It is unstable, and the center of gravity shifts with the sand. And because it's not solid, it WILL break/burst. It mentions multiple times in the listing that it is a "slam" ball. But if you use it like one, it will break. It's not a slam ball. It's not a medicine ball. It's a kick ball half filled with sand. Don't be fooled. Save your money and buy an actual quality piece of equipment, and not a cheap look alike.

Item is exactly as described. Actually feels heavier than I expected so don't worry about it feeling too light.

Love it ! Great addition to my home gym.

I added the 50 lb to my collection of dead weight slam ball. All of them are J/fit, good quality.

Seems to be a quality product good construction and looks identical to the TRX slam ball and is easy to grip

Easy to grip, durable and solid addition to garage gym.

I am addicted to using this slam ball just about daily. This is the second one I have purchased from j/fit. I have a 40 lb and now this 30 lb (I'm a female so these are on the heavier side but I love the challenging work out). I use these for squat cleans to the shoulder, over the shoulder tosses (like a keg toss), planks/plank knees to elbows, slam ball step ups, plank jacks, squats, lunges, pushups, travelling pushups, thrusters, sit ups, and sometimes as an actual "slam ball." These are durable, keeping their round shape (haven't flattened out like other slam balls), and portable. These complete any gym and you will get a full body blast from using these. I highly recommend this brand due to the best price and quality combination.

Weight inside the ball shifts around. Makes it unbalanced.

Awesome tool. I use it as an alternative to sledgehammer training, since you either spend $300.00 on a "designer" rubber sledge hammer that slowly cracks away from wear and temperature changes; or you find a tire yard where they'll give you a used 200lbs tractor tire, which you'll have to clean out and find a place to store in conjunction with a 20lbs sledgehammer. Been hurling that thing into the ground full force onto smoothed concrete: no issues.

Due to the ball's size and weight distribution, the 30lb SB is akin to a stone, a power bomb useful for developing and maintaining physical conditioning. Light but heavy. This ball serves. I like it.

Excelente material, muy recomendable para hacer ejercicio, y llegó antes de lo esperado

Good grip like a tire.

Excelente compra la de esta pelota... muy buena calidad y bien hecha. No despide ningun olor y su tamanaño es bueno.