The HotHands Disposable Lap Warmer is a portable heat pack that provides 8 hours of warmth in a compact 16x10 inch size. Made with water, vermiculite, polymer, iron, and charcoal, this orange hand warmer is disposable and ready to use straight out of the package. Perfect for outdoor activities like camping, hiking, and backpacking, this packable product is designed for convenience and effectiveness in cold weather conditions. With an activated temperature of 163°F, this lap warmer from HotHands is a reliable companion for staying cozy on-the-go.