Fine Hair (IS-FH): Ultra gentle Memory-Flex™ double bristle great for detangling fine, chemically-treated or fragile hair. Also best for extensions.

Medium Hair (IS-MH): Flexible Memory-Flex™ dual length bristle perfect for detangling hair of regular thickness. Comfortable ball point tips are gentle on hair & scalp.

Thick Hair (IS-TH): Memory-Flex™ tension bristles are ideal for quickly detangling thick or coarse hair. Comfortable ball point tips are gentle on hair & scalp.