Feature: 1. 10 Specifications: This set contains 10 specifications of circuit chips, which are NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817. 2. 85 Pcs Set: Each specification of chips has enough quantity for you to use, which can be used for home circuit work and assembly. 3. Wide Purpose: This set can be widely used in precise timer, dual op amp, audio amplifier, Darlington array, four op amp, bass guitar overload pedal PCB, etc. 4. Fine Made: These circuit chips are fine made, the pins are not easy to bend and can be perfectly realigned. 5. With Storage Box: These chips come with a storage box with compartments, very convenient for storage and carrying. Specification: Item Type: IC Assortment Kit Material: Plastic Color: Black Specifications: NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817, DIP IC welding adapter connector Application: Widely used in daily assembly, such as precise timer, dual op amp, audio amplifier, Darlington array, four op amp, bass guitar overload pedal PCB, etc.. Package List: 10 x NE5555 x LM32410 x LM39310 x UA7415 x ULN280310 x LM35810 x LM38610 x NE55325 x ULN200310 x PC8171 x Storage Box