Frabill Pro Thermal Tip-Up with Lite Chart, 1671: * Has a unique round shape and thick insulation covers the entire hole to prevent freeze-up, even at 25 degrees F below * Seals the hole to keep blowing snow and slush out while blocking unnatural sunlight that can spook shallow water trophies * Comes in chartreuse for high visibility * Includes a #1677 Lil" Shiner Tip-Up light shaft in a shaft design that allows for re-greasing * Fits in 5-6 gal bucket * Pre-lubed with Sub-Zero low temperature lubricant and dual trip settings, with a removable spool shaft