Amazon.com: ABMAT Sit Up Mat- The Original Abdominal and Core Trainer Mat for Full Range of Motion Sit ups, Crunches and Ab Workouts Black Vinyl : Sports & Outdoors
Jewel City Crossfit - For time: 100 Double Unders 90 Abmat Sit-ups 80 Mountain Climbers 70 Russian KBS (24/15 kg) 60 Box Jump Overs 50 Goblet Squats *10 Half Burpees at the start of every minute | Facebook