Description: 【Quality Material】: This gymnastics spring for exercise floor is made of sturdy steel, ensuring long-term use. It can withstand a maximum load of 1000, making it suitable for heavy-duty use in training and competitions. 【Detailed Specifications】: The spring has a height of 110mm, an outer diameter of 52mm, an inner diameter of 41.4mm, and a wire diameter of 5.3mm. It features a cylindrical shape with multiple rotation.Please note that the compressed height is 53mm. 【Great Performance】: With an electrophoretic surface treatment, this spring offers great resistance to wear and tear. Its compression strength is rated at 5000 with a lifespan up to 50000 uses. 【Easy Installation】: The spring comes with a pitch distance of 10mm for easy installation on the floor. It's designed to be fixed on the floor for reliable use during gymnastics exercises. 【Package Includes】: Each package contains 1 red or black gymnastics spring made from steel wire. Specification: Material: steel Size Chart: Height: 11cm/4.33inch Package Includes: 1 Gymnastics Spring Note: Please allow slightly errors 1-2cm differences due to manual measurement.