Common options include plastic (ABS) for electronic spatulas and metal—often zinc alloy—for small makeup spatulas and spoons.
Many electronic spatulas are battery-powered: some are rechargeable/cordless while others require installed batteries. The examples list limited warranties of 1 year and 2 years.
They’re useful for sampling cosmetics from jars to reduce mess and contamination, and for applying and storing creams, lotions, masks, and eye products—handy for travel and daily care.