Conquer The Cold! Grabber Peel N' Stick Body Warmers are rectangular shaped single-use air-activated heat packs that contain and adhesive on one side, so they stay in place where you stick them. They provide 12+ hours of continuous warmth for the body. Grabber hand warmers are a non-toxic, odorless heat source using ingredients that are non-combustible. Specs & Details: • Quantity: 40 Individual Body Warmers. • Duration of Heat: Up to 12 hours of heat. • Activation Time: 15-30 minutes. • Average Temperature: 127 degrees Fahrenheit (53 degrees Celsius). • Max Temperature: 154 degrees Fahrenheit (68 degrees Celsius). • Ingredients: Iron, Water, Cellulose, Vermiculite, Activated Carbon and Salt. • Storage: Keep in a cool place out of direct sunlight. Directions - Do not open outer package until ready to use. Remove warmer from outer package; expose warmer to air. No shaking is necessary. Peel the proactive backing, and adhere the body warmer to the outside of the clothing. Do not apply the adhesive side of warmer directly to skin. The Peel N' Stick Body Warmer is designed to warm gradually and reach average temperature approximately 20 minutes. Warmer will provide heat for 12+ hours. Due to differences in individual body temperate, optimal warmer temperature may vary from person to person. Buy with Confidence - To ensure you receive genuine Grabber products when shopping online, please only purchase from authorized distributors or retailers or an Amazon listing that clearly states the product is sold and shipped directly by Amazon.com. Unauthorized sellers, such as private sellers (not commercial sellers) may offer outdated products or imitations not meeting Grabber quality standards. We want our customers to purchase our products with the confidence that they are getting genuine, quality Grabber products.