Convenient hook and loop closure adjusts for proper fit. Provides firm, comfortable support, helping to relieve neck discomfort. Constructed of soft, porous cotton cover over polyfoam. User size: Universal. No installation required. Allergy: Not made with natural rubber latex. Proposition 65 warning: This product contains a chemical known to the state of California to cause cancer, birth defects, or other reproductive harm. Warranty: 60 days limited warranty. Made from foam. Made in China. No assembly required. 3.75 in. L x 3 in. W x 11.5 in. H (0.14 lbs.). The Cervical Collar by Drive provides firm, comfortable support which helps to relieve neck discomfort while providing extra support. Cervical Collar has a convenient hook and loop closure which allows the unit to be adjusted for a proper fit. The Cervical Collar is constructed of soft, porous cotton cover for comfort which is over polyfoam for the best support.