PERFORMANCE FILL: The Facility Series 4ft Heavy bag is filled at the core with 100% textile fill. There's no added sand weight that can shift and create dangerous hard spots in the bag. To further improve the consistent feel and appearance we add a layer just under the padding. DURABLE CONSTRUCTION: Constructed with our durable and cleanable T-Flex Poly Shell creates the gold standard in punching bags for facilities and home gyms. Punches… Kicks… This heavy bag can take anything you throw at it. ALL INCLUDED: We include our proprietary hardened black clips. These aren’t the off the shelf hardware store pieces. We have designed these with materials and processes that will extend the life and improve the performance of all punching bags. COMMERCIAL-GRADE: THROWDOWN is the Original Impact Sports Brand, perfecting our products together with elite MMA athletes, trainers, and coaches for nearly two decades. Our Facility Series 4ft heavy bag is designed to withstand the punishment of commercial facilities. Constructed with the most durable materials available and are easily cleanable. Technical Specs: Technical specs: 16” diameter, 48” in length, weight ranges from 90-105 lbs. **We focus on the firmness of the heavy bag rather than weight to give you the most consistent feel and performance**