Fast Back Revolver 31' 5/16" FB-DR The Revolver is a great transition and dummy rope. Ideal to move up from the 1/4 size, yet smaller in diameter than regular head ropes. Fast Back Ropes was founded in 1995 on traditional family values and personalized customer service while making high quality nylon and poly ropes. Fast Back brand is renowned internationally for ropes with the most consistent body and feel.