This NorthStar® Horizontal/Vertical Log Splitter's multi-patented design gives you premium components and exclusive features that let you save time, increase performance and work effectively. You can count on NorthStar to bring strength, durability and innovation every time. The backbone of this log splitter is an industrial-strength I-beam with heavy plate steel reinforcement. The patented wedge design, made with alloy steel, maintains consistent split and has a unique curve that reduces initial contact area for maximum penetrating force. Add the optional NorthStar Wedge Wings (Item# 110910, sold separately) to make each stroke more efficient. Auto-return wedge saves time and effort when splitting.