The Tenkara USA Keeper features two patent-pending solutions. The first feature is a unique line-catching mechanism. As you wind the line it gets automatically caught between two walls so that the line never "explodes" out of the spool, and you can stop winding it at any point rather than looking for a notch to stop.
Another one is a small compartment to hold between 6 and a dozen flies (or your rod plug).
Diameter: 80mm (3.15inches)
Weight: 39.6g (1.4oz)
Made in the USA