The Piki Piki Bike has no nasty sharp edges and has no toxic materials (no BPA, phthalates or PVC). It conforms to CPSIA and ASTM F963 safety standards. What does that mean? It means the bike has no lead or other nasty chemicals and that, if used as directed, won’t cause any surprise harm from sharp edges, exposed mechanisms etc.
The bike is really lightweight and super easy to use but full instructions are included in the box and we always recommend that little ones wear safety helmets (not included) while playing on the Piki Piki. And while the Piki Piki doesn't require any parental assistance to use, adult supervision is required (you know how kids are!).