Common types include mini glitter putty, sparkly modeling compound, metallic or mica-shimmer formulas, and crystal-style putty that sparkles when stretched. These are sold in assorted neon, sparkle, metallic, and jewel-tone finishes.
Most products are labeled for preschool ages and up, with many listings showing “3 years and up.” Some packs list “2 years and up,” and at least one listing shows “6 years and up.” Always follow the specific label on the product.
The shimmer usually comes from mica-based glitter. Product text notes that mica is a naturally occurring mineral that gives the compound its metallic or pearlescent shine.