Thames & Kosmos Rock Tumbler Refill Pack water pump Each blaster includes multiple packs

Each blaster includes multiple packs filled with vibrant Prizm parallels

Builder and Deluxe sets - features base grid for added stability

Douglas Toys' whimsical take on this popular species of salamander features an appealing rainbow of pastel colors

and any history fan too

Thames & Kosmos Rock Tumbler Refill Pack water pump Each blaster includes multiple packsKeep the fun rolling with the Thames & Kosmos Rock Tumbler Refill Pack! Perfect for extending the life of your rock tumbling adventures, this refill kit includes additional polishing grits and rough gemstones to create more beautiful, shiny treasures. Designed to work with all Thames & Kosmos rock tumblers, this refill set helps you continue transforming rough stones into smooth, polished gems. Ideal for science enthusiasts, hobbyists, and young