Yes4All NZQD Slam Balls 4.5 - 18.1kg/Slam Medicine Ball Version/Sand-Filled No-Bounce Exercise Ball, Suitable for Crossfit Workout and Strength Training (Black) - 4.5kg, Dynamic Black

ENHANCING TRACTION WITH LARGER TREAD: New design of larger tread offers an easy and tight grip on the exercise ball; Also, wide glossy groove allows water to slide through quickly, so no longer afraid of slips caused by sweat from sweaty hands and intense SAND INNARDS MAKES IT LESS BOUNCY: This version of weighted balls is great for slamming into the ground, overhead throws, “ground to shoulder” and other exercises as the sand shifting keeps the ball stay in one place once it touches the surface BOOST WORKOUT TO ANOTHER LEVEL WITH THE MESMERIZING GLOSSY COVER: Our newest and probably the most good-looking one of the slam ball family is here; Let’s make your gym shiny and more energetic with this modern slam ball and you won’t regret it ABILITY TO ABSORB GREAT IMPACTS: The soft elastic pvc outside combined with sand inside can withstand extreme amount of force coming from your physical training sessions without breaking open; You can now focus on the training itself and no need to worry WIDE RANGE OF WEIGHT TO CHOOSE FROM: Our products are available in different levels of weight - 4.5, 6.8, 9, 11.3, 13.6, 18 kg, so that you can find the most suitable ones for your training