Features: Stable: The equipment is stable and allows for an intense high caliber workout at home and even the overall calming workouts of yoga. Material: This product is made of PVC material, durable and reliable, explosion-proof, elastic. Application: As well as improve your strength throughout your body ranging from your: core, arms, posture, leg muscle and muscle tone. Function: It is utilized in yoga, often to help relieve chronic stress patterns, relax the mind, and sharpen concentration. Strong Pressure Capacity: It to ensure your safety when using, safe and reliable, you can use with confidence. Specifications: Material: PVC Color: light grey, purple Size(L x W):about 16.54x1.57 inches Inner diameter:about 11.42 inches Package included: 1pc x yoga ball base Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.