The Frabill Pro-Thermal Tip-Up is the original insulating tip-up and still the best on the ice! The features and performance of the Frabill Pro-Thermal Tip-Up make your time out on the ice easier and more productive. The unique round shape and thick insulation will keep your 10" fishing hole covered and will prevent freezing at temperatures as low as 25 degress below. The easy to carry tip-up seals the hole to prevent blowing snow and slush from intruding on your fishing hole. It also blocks out unnatural sunlight that can spook shallow water trophies. The shaft-in-shaft design allows for easy re-greasing, and is ready to go as it is pre-lubed with Sub-Zero low temperature lubricant. The dual trip settings and removable spool shaft add ease of use and performance to the Frabill Pro-Thermal Tip-Up.