Product details:

Ergonomically designed housing handle with tactile rubber grip for balance and comfort. Freewheeling hub for fast pay out of blade without spinning crank. No more busted knuckles! Re-engage with the push of a button. Massive crank arm with large; easy-grip knob for comfort and reliability. Knob folds down for storage. Locking pawl enables proper blade tension during measurement. Rubber no-slip foot for steady placement during measurement.