Circular Shape and insulating design cover the entire hole to prevent free-up down to 25 degree below. Keeps slush and blowing snow out of the hole. Blocks out unnatural light. Spool shaft is pre-lubed with special Sub-Zero lubricant for smooth operation regardless of the temperature. Spool shaft folds directly into the tip-up base for compact storage. Easily stackable inside a 5-6 gallon pail.

• The original insulated tip-up - Prevents hole from freezing up - Covers 10" hole
• Easy to carry design - Fits in 5- to 6-gallon bucket for simple storage
• Pre-lubed with Sub-Zero low-temp lubricant - Shaft-in-shaft design allows re-greasing for many seasons of successful ice fishing
• Dual trip settings (light or heavy) - Removable spool shaft