Function: Core sliders for working out, use the power to overcome sliding, mobilize all muscle groups to adapt to such a core and stability system, and stimulate the muscles of the waist, abdomen and buttocks, thereby increasing the training effect. Nonslip: Exercise gliding discs, sturdy and nonslip, you can use it on surfaces such as carpet, wood, laminate, or tile. Portable: Dual sided gliding discs, compact and lightweight, easy to carry, fit in any bag, perfect for exercising at home, office, the gym, or the park. Durable Material: The Fitness disc is made of high quality pp material, durable and strong enough for long time use. Widely Used: This exercise equipment can be used for sliders gym, athletic conditioning, core strength reinforcement, yoga, pilates, dance, balance training and more. Size Chart: Diameter: 17.5cm/6.89inch Package Includes: 1 PairCore Sliders Note: Please allow slightly errors due to manual measurement and different monitors.