1/2 cc (0.5 ml) 50 units or less. 5/16 inches (8 mm) length. 31 gauge. 100 sterile single use syringes. Insulin Syringes: Convenient poly bags of ten insulin syringes; protective needle shield & plunger cap; large, bold, easy-to-read permanent markings for accurate dosage; lubricated needle for your injection comfort; permanently attached needle; comfortable finger grip for better injection control; low dead space to prevent insulin waste; not made with natural rubber latex. Made in Korea.