Come and see our amazing products! This sit-ups auxiliary equipment is made of rubber and metal. It can be used at home or in the office to shape your body and trim your waist. Also very suitable for travel. The perfect gift for people to have a healthier life, especially for those who don't have time to work out in the gym or gym. This is a very ideal portable exercise tool that saves time and money. Assembly is easy and quick, simply take a few minutes and start your ab workout. Quantity over 300pcs bases on ocean shipping way. If there is any way I could do more for you. Pls don't hesitate to let me know. I will be there 7 x 24 hours waiting for your news. Pls confirm further with us if any query about packing info, inventory status and time schedule.