Grabber Warmers Mega Hand Warmer MWES Box of 30 Its double layer of 3M plus 2 bit holders Its double layer of 3M Thinsulate insulation and waterproof nylon fabric keeps your valves safe and secure while the hook and loop closure makes installation easy The Solo 425 Piston Backpack Sprayer is designed with a connecting rod actuated piston pump that is caan produce up to 90 psi and can handle tasks from small to large They provide 18 hours of continuous warmth for the hands and body Grabber Mega Warmers are rectangular shaped single use air activated heat packs that are larger and last longer than standard heat packs