Accessorize with these sexy gems. Attaches to most garments with patented dual magnet design. Intense vibrations with push button activation. ABS (stimulator, gem) ABS with Silver Plating (dand#233cor ring). Batteries included (3 watch, 6 included). US Patent 6-991-598 B2. 2.25x .75/ 6 cm x 2 cm (stimulator). 1.25/ 3 cm (gem circumference).