An instructional device for an instructor to use with a student for downhill skiing is disclosed. In use, the instructor skis to the side and behind the student skier. A curved extension member is provided at the end of a shaft and is placed against the student skier's midsection to provide stability and balance for the student. Two student handles can be attached to the extension member. The student handles serve two purposes. The device can be easily converted for use either from the student's right side or left side, depending on the instructor's preference. Second, the student handles can be added as the student progresses to help correctly position the student's hands and develop good posture for the eventual use of ski poles. An instructor handle is located along the shaft. The instructor handle may be adjustable along the length of the shaft.

An instructional device for an instructor to use with a student for downhill skiing is disclosed. In use, the instructor skis to the side and behind the student skier. A curved extension member is provided at the end of a shaft and is placed against the student skier's midsection to provide stability and balance for the student. Two student handles can be attached to the extension member. The student handles serve two purposes. The device can be easily converted for use either from the student's right side or left side, depending on the instructor's preference. Second, the student handles can be added as the student progresses to help correctly position the student's hands and develop good posture for the eventual use of ski poles. An instructor handle is located along the shaft. The instructor handle may be adjustable along the length of the shaft.

Sport sticks including a shaft, a plurality of different shaft connectors, and a head are disclosed. The shaft includes at least a first shaft section and a second shaft section. Each of the shaft connectors may couple the first shaft section to the second shaft section. The sport stick is configured to selectively convert between an assembled configuration and a disassembled configuration. In the assembled configuration, the first section, the first shaft connector, and the second section are coupled together. In the disassembled configuration, one or more of the first section, the first shaft connector, and the second section are selectively decoupled. Each one of the plurality of shaft connectors defines at least one of a unique strength characteristic of the sport stick and a unique flexibility characteristic of the sport stick when the sport stick is in the assembled configuration.

Sport sticks including a shaft, a plurality of different shaft connectors, and a head are disclosed. The shaft includes at least a first shaft section and a second shaft section. Each of the shaft connectors may couple the first shaft section to the second shaft section. The sport stick is configured to selectively convert between an assembled configuration and a disassembled configuration. In the assembled configuration, the first section, the first shaft connector, and the second section are coupled together. In the disassembled configuration, one or more of the first section, the first shaft connector, and the second section are selectively decoupled. Each one of the plurality of shaft connectors defines at least one of a unique strength characteristic of the sport stick and a unique flexibility characteristic of the sport stick when the sport stick is in the assembled configuration.

A shoulder motion exercise device, kit, and method of use having a retainer, a plurality of connectors, an extender, and a slider. The device aids in the stretching and exercise of at least a shoulder and a portion of the torso.

A shoulder motion exercise device, kit, and method of use having a retainer, a plurality of connectors, an extender, and a slider. The device aids in the stretching and exercise of at least a shoulder and a portion of the torso.

A lacrosse stick shaft comprising an elongated shaft member having a nonuniform outer profile comprising a plurality of non-corner face elements extending along a first axis. An inner passage is formed in the elongated shaft extending along the first axis. The outer profile further comprises two or more outer profile portions with different non-corner face elements extending along the first axis.

A shoulder motion exercise device and method of use having a retainer, a connector, an extender, and a slider. When the user mimics a golf swing, the device aids in the stretching and exercise of at least a shoulder and a portion of the torso.

A shoulder motion exercise device and method of use having a retainer, a connector, an extender, and a slider. When the user mimics a golf swing, the device aids in the stretching and exercise of at least a shoulder and a portion of the torso.

An endcap system for a sporting implement includes a base portion and a transverse extension projecting from the base portion. The base portion has a bottom surface with a central axis normal thereto. A receptacle opposite the bottom surface is configured to receive a portion of the sporting implement. The extension is configured such that, during swinging of the sporting implement with a hand of a user gripping around the sporting implement portion, the extension contacts an exterior lateral portion and upper portion of a fifth metacarpal of the hand and the hand is constrained in both the transverse and longitudinal aspects while being allowed rotation of a first metacarpal of the hand away from the central axis.