Our 5/16 inch wide Vinyl or Velvet Split Design dog collars have sparkling clear rhinestones and are available in sizes 10, 12, 14 and 16. The Vinyl colors are Red, Blue, Black, Pink, Gold and 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 inch neck. Size 12 will fit a dog with a 8-1/2 to 9-3/4 inch neck. Size 14 will fit a dog with a 10 to 11-3/4 inch neck. Size 16 will fit a dog with a 12 to 13-3/4 inch neck.