Unlock the mysteries of common minerals with the toysmith mineral science kit. The kit includes fifteen (15) mineral specimens, plus a magnifying viewer and a handy identification guide. Perfect for young science enthusiasts, especially those with an interest in geology. A plastic storage tray keeps the mineral collection together when not in use. For ages 8 and up. # Pieces In Set: 18 Recommended Ages: 8 Years And Up Measurements: 7.5 Length/Inches Assembly: Assembled Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 15.0px Calibri; -webkit-text-stroke: #000000} span.s1 {font-kerning: none} WARNING: CHOKING HAZARD – small parts. Not for children under 3 years.