We carefully select the combination of 74HCXX series and 74LSXX series for you to meet your needs for IC chip work. 74HCxx Series Shift Output Registers IC chip. The most popular 74LSx series IC chip kit. 74LS00 2 input four NAND gate, 74LS02 2 input quad NAND gate, 74LS04 six inverter. Colour:Black Material:plastic Package Contents: 2 * 74HC00 chip 2 * 74HC02 chip 2 * 74HC04 chip 2 * 74HC08 chip 2 * 74HC14 chip 2 * 74HC32 chip 2 * 74HC138 chip 2 * 74HC164 chip 2 * 74HC165 chip 2 * 74HC595 chip 2 * 74LS00 chip 2 * 74LS02 chip 2 * 74LS04 chip 2 * 74LS08 chip 2 * 74LS32 chip 2 * 74LS47 chip 2 * 74LS86 chip 2 * 74LS90 chip 2 * 74LS138 chip 2 * 74LS245 chip Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.