Bunker Kings Knuckle Butt Supreme Tank Cover Grip - Compatible with Carbon Fiber and Aluminum Air Systems [BK Strong]  Ultra-durable tank protection | Anti-tear elastomer material [Optimize]  Shoulder gripping grooves | Increased grip without bulk [Convenient] - Quick roll up for date-checking | Unique flat folding system [One Size Fits All] - Easy to use | Flexible and stretchable to fit all tank sizes [Stylish]  Awesome Sucker-Free designs straight out of NYC