This battery holder fits four D cell batteries (not included) and is useful for virtually any experiment requiring a low voltage power supply and ships fully assembled. Five color-coded binding posts on the base make for easy, safe, and reliable connections to hook-up cords providing outlets for 1.5V, 3V, 4.5V, or 6V supply voltages. Battery holder is firmly mounted on a heavy duty base. Additional Info: This battery holder fits four d cell batteries (not included) and is useful for virtually any experiment requiring a low voltage power supply and ships fully assembled. Battery holder is firmly mounted on a heavy duty base. Package Size(L x W x H): 7.75 X 4.75 X 2 (IN) Categories: Electricity, Battery Holder HTS Code: 8536.61.0000 UNSPSC: 2.61117e+007 Country Of Origin: CHINA