NATIONAL GEOGRAPHIC Professional Rock Tumbling Kit - Patent-Pending Rock Polisher for Kids & Adults, Platinum Series Ultra Quiet, 2lb Barrel, Rocks, Grit, GemFoam Polisher, A Great STEM Science Kit

Brand: NATIONAL GEOGRAPHICFeatures: PROFESSIONAL TUMBLING - With its large 2-pound barrel, three selectable speeds; and timer with settings for days and hours, the Ultimate Tumbler delivers spectacular results with unparalleled ease of use! QUIETEST TUMBLER - The Ultimate Rock Polisher's all-new design includes a sound-dampening cover that makes tumbling quieter than ever, perfect for enthusiasts who tumble indoors, or in smaller or shared spaces. ALL-IN-ONE TUMBLING KIT - This kit has everything you need to get started, including one pound of rough rocks, four bags of grit, five jewelry fastenings, a newly designed strainer, and our exclusive GemFoam rock polisher for a brilliant finish! PATENTED AGITATE MODE FOR LESS BREAKAGE - The Ultimate Rock Polisher's patented agitate mode provides even more versatility! Its gentle, back-and-forth motion reduces rock breakage when tumbling softer rocks. HIGH-QUALITY EDUCATIONAL TOYS - National Geographic is proud to make the highest quality han