This educational kit is loaded with more than 300 projects to build. For example, kids can learn how transistors and capacitors function, and how to make time-delay circuits. In addition, this version includes circuits showing how oscillators and photo sensors work. Projects involve an AM Radio, Burglar Alarm, Radio Announcer and more. Contains over 60 parts. Requires 4 “AA” batteries, not included.
Deluxe, large 12 lb. capacity hexagon rubber barrel. Quiet, efficient operation. Well-suited for the serious rock hobbyist or for the sportsman as a case polisher for handloaded ammunition. Overload protection, continuous duty, fan-cooled motor.
Meade’s 900-power microscope with 28-piece kit is a fascinating, educational and useful toy laboratory microscope for children. Includes everything needed to get started exploring the realm of the microscopic world. Kit includes a functioning, durable, quality metal body microscope with 100X, 400X and 900X magnifications.
Model B In Mailer Rock Tumbler
This is the real thing! Heavy duty rock tumbler does much more than
ordinary rock polishers- it actually changes rough stones into beautiful
high-luster semi-precious gemstones. You can even make jewelry and key
chains with the settings included in this set. U.L. Listed. Set includes
tumbling machine with heavy duty motor, rough semi-precious stones (incl
uding amethyst, jasper, agate and others), grit, polish, jewelry settings,
glue and instruction manual. Ages 10 and up.
REAL WORKING ROCK TUMBLER THAT WILL POLISH SEMI PRECIOUS STONES. COMES COMPLETE WITH STONES AND GRIT.
Big tumbler, keep on rolling! Shiny rocks keep on tumbling – with this refill kit for the Rolling Stones Rock Tumbler from NSI, sold separately. Set includes additional semi-precious stones, grit, polish and jewelry settings.
Keep your rock polisher rolling with a refill kit of unpolished stones. Includes: 2 bags of Step 1 Course grind powder. 2 bags of Step 2 Fine grind powder. 2 bags of Step 3 Polishing powder. 2 bags of Step 4 Final polish powder. 2- 8 oz. packages of gemstone rocks. Jewelry settings: 3 key chains, 1 necklace, 4 rings and 3 pairs of hanging earrings. 1 bottle of glue. Turn your polished rocks into beautiful jewelry or just enjoy them as a prized collection. Safety warning: This product contains small parts that may present a choking hazard for young children.
3lb. capacity tumbler. One rubber barrel. 115V continuous duty motor – impedance protected. For the beginner. Does a quality job of polishing stones. Lighter motor than other models. Besides tumbler, kit contains polishing rock, 4 grades of polishing abrasives, jewelry findings and booklet A Guide For Rock Polishers.
Set contains semi-precious stones jewelry findings, polishing grit and glue, Manufacturer: Tyco
Make your very own gemstone jewelry with this rock tumbler kit! Set includes a half pound of gemstone rocks, grinding and polishing powders, necklace chain, rings, key chains, earring mounts and glue! Ages: 10 + Manufacturer: Marlon Creations
Contains sea shells, jewelry findings. decorative eyes, polishing drit and glue, Manufacturer: Tyco