Monster M850 I-4 M-Series 850 RCA Stereo Cables (4 feet)

An ultra-glam good luck charm. Studio Silver's petite horseshoe pendant features a unique diamond-cut surface that reflects the light. Set in 18k gold over sterling silver. Approximate length: 16 inches + 2-inch extender. Approximate drop: 1/2 inch.

Build imaginative machines in this creative and addictively fun brainteaser

Turn cranks, rotate gears, pull levers, and more to build unique contraptions

Solve more than 200 challenging puzzles; put your machines to work

Physics engine with air-pressure, electricity, gravity, and particle effects

Experiment with gears, robots, explosives, and more in your own virtual lab