4 PACK - 1x Triple Black, 1x Forest Green, 1x 5am Blue, 1x Ghost Gray + 4x Barbell Blender for mixing 32oz CAPACITY (measurements go to 28oz) - Large BPA FREE water bottles. Use as shaker bottles for mixing preworkout & BCAAs (not for protein) VERSATILITY - Use as a water bottle or shaker cup. Use for biking, running, endurance training, weight training, and all sports. Includes stainless steel Barbell Blenders. PRINTED MEASUREMENTS & TRANSLUCENT STRIP - Clearly printed measurement lines and a translucent strip from top to bottom on this squirt bottle helps you accurately measure the liquid capacity at all times. QUICK GYM HYDRATION - No opening and closing necessary. Just squeeze and Hydrate! Great for treadmill runs, stationary bikes, & HIIT Workouts.