Abstract: A sanding block structure having storage means for an elongated strip of abrasive material and including a pusher for driving a portion of the abrasive strip over a work piece is shown wherein the storage means for the abrasive strip and the working surface for engaging the abrasive against the work are carried on a cassette structure that is readily separable as a unit from the pusher.

Abstract: A composite structure is shown wherein a fibrous body or a tube such as a convolute or spirally wound paper tube or mold pulp bucket supports a plastic liner within the body to form a container. The material forming the mouth of the plastic liner is overlapped around at least one end of the supporting body and the outer overlapped layer of plastic is shrunk onto and around the outer side at the end of the support. In one form of the invention, the liner may be sealed at one end to form a bag suspended within the container to hold the product and caps may be applied to the open end or in the case of a tubular body, caps can be applied to the opposite ends of the body to complete the package.