A therapeutic resilient hand exerciser and method of manufacture is disclosed. A mass of tiny glass spheres having the consistency and appearance of a fine powder is enclosed in a resilient inner bladder which is surrounded by an outer resilient bladder and a thin layer of powder is disposed between the exterior surface of the inner bladder and interior surface of the outer bladder to prevent the surfaces from sticking together and allow relative sliding movement therebetween. The tiny spheres roll on each other upon squeezing and releasing pressure on the exerciser to provide low resistance to relative movement and allow the exerciser to be compressed quickly and to resume its natural shape quickly due to the resiliency of the superposed bladders, and thereby produces a smooth squishy sensation.

A deformable calendar in the form of a ball-shaped device sized to fit a user's hand and having a tabular register of days and months printed on its exterior surface. The device has a tightly-packed particulate core and a resilient outer covering. A user can increase the size of any part of the printed register by manually stretching the associated part of the covering. The printed register is preferably located on at least two opposite sides of the device so that a user can view any part of the register by a suitable manual manipulation of the device.

A resilient wrist support and therapeutic hand exerciser device for supporting the wrist of a person performing repetitive tasks with their wrist, hand and fingers, such as using a computer mouse and typing on a keyboard, and for exercising the muscles of the wrist, hand, fingers and forearm of the user. A mass of tiny glass spheres having the consistency and appearance of a fine powder is enclosed in a resilient inner bladder surrounded by a resilient outer bladder and a thin layer of powder is disposed between the exterior surface of the inner bladder and interior surface of the outer bladder to prevent theme from sticking together, reduce friction therebetween, and allow relative sliding movement between the surfaces. The tiny spheres provide low resistance to relative particle movement by rolling on each other upon an increase or decrease in pressure applied to the device. When placed on a flat surface beneath the wrist of a user, the device deforms slightly and conforms to the underside of the user's wrist to form a comfortable cradle-like support as the downward pressure of the wrist increases or decreases. As the wrist is moved relative to the flat surface, the device smoothly rolls between the wrist and the flat surface to provide a smooth massaging effect on the wrist while maintaining wrist support. The resilient device can be squeezed in the palm of the hand to exercise the muscles of the hand, fingers, wrist, and forearm.

A hand held exerciser and key chain assembly includes a ball body having a plurality of elastomeric balloon layers and a particulate material packed within an innermost balloon layer. The balloon layers each have an opening therethrough. An inner attachment member having an outer diameter greater than the diameter of at least the opening of the outermost balloon layer is situated within at least the outermost balloon layer. An outer attachment member is snap engaged to the inner attachment member. A loop is connected to one of the attachment members and extends through the opening in at least the outermost balloon layer. A key chain is attached to the loop. As a result, an interesting and structurally sound hand held exerciser with key chain assembly is created.

The invention is a semi-resilient exercise grip that has a non-resilient particulate core surrounded by a resilient rubber covering. Within the core there is also a dry lubricant such as talc that allows the particles to move over each other without damage. The outer covering may consist of a single thick latex layer, a thin latex layer surrounded by a thick rubber layer or a number of thin latex layers. The semi-resiliency of the grip enables a user to deform the grip and thereby change its shape. The grip can be moved within the hand to allow the user to deform it repeatedly while changing the grip's shape each time.