Dollamur Hook and Loop Velcro Mat Fastener holds your carpet mats together for Gymnastics, Cheerleading, Fitness and bootcamps. Cover mat seams with this easily removable hook and loop tape to cover gaps between mats and reduce tripping hazards.This hook fastener is 4 inches wide and 42 feet long and is used to secure more than one carpeted Dollamur Mat.Available in all carpet colors to match or contrast your Dollamur bonded carpet mats.