6:1 gear ratio, fold-away, rotating hub for faster rewind and reel protection during storage Single hand hub lock allows user to stop line in place and snap lines with only one hand Nesting end hook retracts into a nested position, protecting the hook from unwanted snags Reinforced string perfectly braided for the best balance between chalk retention and reduced overspray One-way chalk refill valve designed for quick refills without the mess.Quarter-turn release for secondary access to the chalk box, Weight: 0.75 pounds, Manufacturer: Apex Tool Group