Our 5/16 inch wide Vinyl or Velvet Split Design dog collars have sparkling clear rhinestones and are available in sizes 10, 12, 14 & 16. The Vinyl colors are Red, Blue, Black, Pink, Gold & Silver. The Velvet colors are Red, Blue, Black, Pink & Purple. MADE IN THE USA! These collars run small! Size 10 will fit a dog with a 6-1/2" to 8" neck. Size 12 will fit a dog with a 8-1/2" to 9-3/4" neck. Size 14 will fit a dog with a 10" to 11-3/4" neck. Size 16 will fit a dog with a 12" to 13-3/4" neck.