The Gaard Lock™ PET Syringe Shield reduces hand exposure from syringes containing 511 keV radionuclides FDG F-18. The barrel of the shield is constructed of .34" thick (9 mm) tungsten that attenuates FDG F-18 by 88%. The syringe shield is offered with or without a high density (5.6) flush mounted lead glass window that provides protection and visibility. A white reflective surface on the shield interior improves viewing of the syringe's markings and fluid content. The syringe shield features a unique flanged locking mechanism that speeds the loading and unloading of the syringe, further reducing hand exposure. Gaard Lock PET Syringe Shields accommodate the standard sized 3 cc, 5 cc and 10 cc syringes. The Gaard Lock PET Syringe Shield fits the Manual Dose Injector. SPECIFICATIONS: Shielding: .34" tungsten (9 mm) Lead glass: 5.6 density 007-711 & 007-716 Gaard Lock Syringe Shield, 3 cc Dimensions: 2.9" l (74 mm) Weight: 1.7 lb (.77 kg) 007-712 & 007-717 Gaard Lock Syringe Shield, 5 cc Dimensions: 3" l (76 mm) Weight: 2 lb (.91 kg) 007-713 & 007-718 Gaard Lock Syringe Shield, 10 cc Dimensions: 3.6" l (91 mm) Weight: 3 lb (1.4 kg)