The POOF-Slinky 02014 Slinky Science Electric Bell Kit introduces the basics of electric circuitry and teaches your child how the early telegraph system worked. Your child can create big noises with this 3-in-1 science kit to make their own working telegraph, buzzer and electric bell. The step-by-step 12-page activity booklet makes it easy to help your budding scientist explore the science behind how electromagnets cause a bell to make big noises, how a telegraph works and how to make an electric buzzer. The Electric Bell Kit contains a base, bobbin, u-bracket, plastic support, (2) plastic battery straps, magnet holder, contact adjusting screw, (4) battery terminals, magnet wire, sandpaper, bell, screw, screwdriver, compass needle, metal flipper, bell hammer, paper clip, pushbutton, cover, spring, contact, (2) contact terminals and a 12-page instruction manual. This kit meets and exceeds ASTM F 963 consumer safety specifications for toy safety and requires a "D" size battery (not included) to test your experiment. This Slinky Science Mini Lab is experiment number 167 of a series of science kits that combine the elements of learning and fun to provide hours of educational entertainment. The POOF-Slinky 02014 Slinky Science Electric Bell Kit is recommended for children 8-years of age and older. POOF-Slinky, Inc. is the maker of POOF, Slinky, Ideal and Scientific Explorer Brands. We manufacture POOF foam balls and the world famous Slinky right here in the USA and our list of products keeps growing. Our company has been in business for over 65-years serving customers around the globe. Our product lines offer new exciting play with the highly successful Sno-Toys line, Fuzz oodles activity kits, as well as timeless classics, such as the original Slinky, Ideal table-top games, wood construction sets and over 400 other products.