ThinkFun Adams Cube

Start off your one-of-a-kind engagement ring or sparkling pendant by selecting your very own unique diamond. This round, brilliant-cut loose diamond (1.01 ct. t.w.) comes with a GIA diamond certification, and will add a dose of spectacular shine to your personalized piece of jewelry. Approximate diameter: 6.46 mm.

Protection: Protects against every-day hazards-full IP-68 rating against water and dust, and designed to Military Specifications

Freedom - Ability to swim and take photos and videos underwater

Beauty - Ultra-slim and adds only 1/16-Inch (1.5mm) when measured from the center of the phone

Convenience - Weighs less than an ounce (28g).

Full Functionality-Double AR-coated optical glass lenses provide unprecedented crystal-clear photo ...

Helps improve fuel economy

Cleans and lubricates fuel injectors and carburetors

Reduces and prevents varnish and gum build-up

Prevents valve sticking and clatter

Prevents oil breakdown caused by extreme temperatures