A black silicone rubber YAKETgrip sleeve with the Strong Like Bull Magnets logo. These grips are designed to fit YETI Rambler and similarly sized stainless steel tumblers. Two sizes are available... for 20oz and 30 oz tumblers. The sleeves have small ribs which really enhance your grip. This is a 'cross-over' product for us... we make these grips... YAKET & Strong Like Bull Magnets are both brands of Conti-Bros, Inc.