[Material: Yoga wheel features a hybrid TPE foam Yoga Wheel size : 13" x 13" x 5" Block size: 9" x 6" x 3" Support up to 440 lbs durable TPE plastic provides the back support you need for spine stretches and it will not flex under your weight Great fitness and stretching tool to assist you with backbends and yoga poses achieving deeper spinal stretches improving core strength opening shoulders and chest improving flexibility and balance. Package included : 1 pcs yoga wheel 2 pcs yoga blocks]