CONSISTENT SHAPE AND BALANCE: PVC soft slam balls for exercise offer balanced and stable workouts; Whether slammed, tossed, or grabbed, a threaded slam ball keeps its shapeEASY TO GRIP WEIGHT BALL: The textured surface of slam medicine balls for exercise offer a stable hold for overhead smashes, chest passes, and Russian twists; Big slam ball prevents slips or dropsHIGH DENSITY & SECURE FITNESS MEDICINE BALL: This med slam ball filled with sand to prevent bouncing or rolling, enhance balance & firmness of the ballVARIOUS WEIGHT OPTIONS: Mid size medicine ball leg raise is available in options of 10, 15, 20, 25, 30, and 40 lbs; Strength training medicine balls cater to many fitness levelsFULL-BODY WORKOUT: High-density slam balls for men are designed for wall slams, squats, or other power movements; Slam balls for exercise baseball support various exercises to enhance overall fitness