Hand-crafted tool to precut the white paper liners (lengthwise) prior to assembly into 'The System' that includes water resistant coated cardboard tube (reusable) and reusable End Plug. The precut liners can also be used with the 48 and 96 hole wood nesting blocks.  Pre Cutting paper liners makes it easier to remove cocoons when you are harvesting them in the fall to clean, inspect and store until spring