Come and see our amazing products. Made of TPE, skin friendly, non-toxic and latex free. You can wrap them around your hand a few times for more tension and a secure grip. Offer a lot of versatility with 5 levels of resistance: Black - 5lbs, Red - 10lbs, Yellow -15lbs, Purple -20lbs, Green - 25lbs. Pls confirm further with us if any query about packing info, inventory status and time schedule.