The #1/2 Cutting Guide comes in Light Gray (3137-101) and measures at a cutting length of 1/16”. The #1 Cutting Guide comes in Black (3114-001) or Red (3114-603) and measures at a cutting length of 1/8”. The #1 ½ Cutting Guide comes in Off White (3139-101) and measures at a cutting length of 3/16”. The #2 Cutting Guide comes in Black (3124-001) or Purple (3124-703) and measures at a cutting length of 1/4”. The #3 Cutting Guide comes in Black (3134-001) or Blue (3134-803) and measures at a cutting length of 3/8”. The #4 Cutting Guide comes in Black (3144-001)) or Orange (3144-1003) and measures at a cutting length of 1/2” The #5 Cutting Guide comes in Black (3135-001) or Yellow (3135-1303) and measures at a cutting length of 5/8”. The #6 Cutting Guide comes in Black (3174-001) or Lavender (3174-1103) and measures at a cutting length of 3/4”. The #7 Cutting Guide comes in Black (3145-001) or Green (3145-1403) and measures at a cutting length of 7/8” The #8 Cutting Guide comes in Black (3150-001) or Light Blue (3150-1253) and measures at a cutting length of 1” The Wahl Professional Cutting Guides fit all full-size Wahl Professional blades excluding the Competition Series and 5-in-1 Magic Blades.