Take your training to a new level of intensity with the Ringside(R) Boxing Speed Bag. This is Ringside's(R) premier bag, providing razor sharp accuracy, unmatchable speed and extreme durability. The Boxing Speed Bag features all-leather construction and is triple stitched with the strongest nylon thread available. Rubber bladders increase the bag's response time and overall toughness. FEATURES: Boxing speed bag provides razor sharp accuracy, unmatchable speed and extreme durability All-leather construction triple stitched with nylon thread Rubber bladders for increased response time and overall durability Model: RPSB Ringside