They're lead-free and have a non-toxic painted finish.
Brad's Deals Editor Marisa,
This Alphabet Flash Card Set drops from $19.99 to $14.99 with free shipping when you enter code BRADSOJDM at US Rexs via Amazon. The next-best price we found on a similar set was $19. It includes 26 wooden letters plus 26 cardboard flash cards. Get free two-day shipping if you're a Prime member or use a free trial. Non-members get free shipping at $25, otherwise it adds $5.99. Sales tax is charged in most states.