Ideal Industries Twister® Proflex™ Wire connector accommodates solid/stranded copper conductor of size 22 - 8-AWG, (2) 8-AWG - (4) 10-AWG. It withstands a voltage rating of 1000-Volts. Connector with expanding square wire spring, has a strip length of 1/2-Inch. It has contoured wing shell. Connector in red/yellow color, has thermoplastic polypropylene/thermoplastic elastomer construction for durability. It withstands a temperature rating of 105 deg F and measures 0.67-Inch Dia x 1.45-Inch x 0.91-Inch. It comes in a box of 50. It is suitable for spin-twist wire connector socket. Wire connector meets UL 486 C, UL 94V-2 Flame-Retardant Shell, RoHS, IEC 60998-2 and 60998-2-4 standards.