Petite (Blue)Aspirating Syringe, Lightweight construction of Aluminum and Stainless-steel. Single syringe. 8 cartridges. Lightweight design prevents hand stress. Made with surgical-grade stainless steel. Available in three procedure-specific #s. Aspirating Anesthetic Syringes are ergonomic, durable syringes for injection of local anesthesia. Each lightweight # fits particular injection requirements, minimizing hand fatigue during procedures.The Standard (Gold) # features a larger thumb ring and regular plunger length. The tiny thumb ring and shorter plunger length of the Petite (Blue and Pink) design suit users with smaller hands.Use the Fusion (titanium) to achieve the benefits of the Standard and Petite #s. Aspirating Anesthetic Syringes are suitable for 1.7 ml and 1.8 ml cartridges.