Size:One Size Product Description Everlast speed bags and accessories are one of the most recognizable brands in all of fight sports! Items that include technology that helps the user get the most out of their workout! Speed bag platform for speed bag workout improving hand eye coordination, upper body strength and agility Everlast warrants its products to be free from defects in materials and workmanship for a period of 120 days from date of purchase, provided they have not been subjected to obvious abuse, neglect or misuse. Everlast's sole liability is limited to repairing or replacing products that are returned within this 120-day period, unless specific product literature specifies otherwise. Please contact customer service for full details, and for replacement assistance at 1-800-821-7930. Amazon.com The Everlast Top Professional Swivel boasts a heavy-duty flange that mounts securely to your speed bag platform. The swivel's precision ball-bearing construction provides for smooth and fast action and accurate rebounding. With triple-chrome plating and all-steel construction, this swivel meets Everlast's professional standards and is designed to take whatever action you can give it. About Everlast The name Everlast is synonymous with boxing. Renown internationally as a manufacturer of boxing equipment, Everlast started out as a swimwear manufacturer in 1910. Headquartered in the Bronx, NY, the company was founded by 17-year-old Jacob Golomb. The son of a tailor and an avid swimmer, Jacob Golomb was dissatisfied with the durability of swimsuits because they barely lasted a season, so he began making suits that he guaranteed would last for a full year. He proudly gave them the name, Everlast. Although the swimsuits did not last through the years, the name did. Over the next years, Golomb expanded his company into a small retail store that carried a full line of sports equipment. In 1917, a young fighter named Jack Dempsey introduced boxing to Golomb and Everlast. Dempsey asked Golomb to construct protective headgear that would last more than 15 rounds of intensive boxing training. Golomb specially designed the training gear for Dempsey. In 1919, Dempsey won the worlds heavyweight championship wearing boxing gloves made for him by Golomb. Everlast became the headquarters for boxing equipment throughout the world. In 1925, Golomb designed elastic-waist trunks to replace the leather-belted trunks then worn by boxers. These trunks, now known as boxer trunks, immediately became famous. Jacob Golomb ran the business until he passed away in the early 1950s and his son, Dan, took over. In 1958, Ben Nadorf joined Everlast and purchased 50% of the company from the Golomb family. When Dan Golomb passed away in 1995, Nadorf purchased the familys remaining 50% interest. Nadorf remained the President and Principle Share Holder of Everlast until October 24, 2000. Everlast mens and womens apparel and accessories continue today to be tremendously successful both inside and outside the ring. In addition, Everlast boxing trunks and equipment remain the proud and undefeated champion of the boxing industry for more than 90 years. The history continues, as the name states. Everlast has a traditional past and a knockout future.