Professional 2-in-1 Bicep & Tricep Curl Machine. 1 x Bicep Tricep Curl Machine. Elbow Cushion Size (L x W x H): 19.7" x 11.8" x 23.6" - 31.5". ✓ Serious Weight Capacity: Supports standard 1" weight plates for a max load of 132 lbs., allowing for progressive overload and continued strength gains.