SNODE Ab Roller Wheel for Abdominal Exercise, Core Muscle Ab Trainer, Exercise a✅REAL-TIME WORKOUT DISPLAY: Intelligent display screen integrated with ab roller wheel to support real-time workout data as time, count and calories. ✅PATENT SPRING STEEL SHEET SYSTEM: Ab roller wheel S550 uses a spiral alloy spring steel sheet with High & Even elasticity to provide smooth resistance during rolling out and stable assistance during rolling back. The automatic rebound distance is up to 91 inches which can suit most men&women even they are beginners and the cores are not strong enough. ✅ULTRA-WIDE WHEEL& ERGONOMIC HANDLES: The ab rollers include Ultra-wide wheel with non-toxic & heavy duty surface which will be quiet and stable during exercise. And also the ergonomic handles which are easily removed for storage and transportation also ensure safe and comfortable workout experience. ✅VARIOUS DIRECTIONS' ROLLING: The design with special slant engages the ab wheel rolling to different angles so as to strengthen and tone your entire core muscles including upper abs, lower abs, obliques and your back muscles. This ab workout equipment is the ideal and perfect training equipment for your home gym. ✅FREE BONUS GIFT AND GUARANTEE: You will get high quality and heavy duty knee pad for superior comfort.1-year manufacturer warranty and friendly customer service all the time. Payment DetailsWe currently accept payment via PayPal only. Once payment is cleared, we will dispatch your shipment within 1-3 business days. Please refer to the "Shipping" tab for more information regarding shipping speed to your destination.Return PolicyAs our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected. If you are not satisfied with your purchase, please contact us within 30 days of receiving your order to process a return.