For small and medium sized dogs, PetTest U-40 insulin 31 gauge syringes are the WORLD’S THINNEST, which provide a more comfortable injection for your customer’s pet. All other U-40 syringes available use a thicker, less comfortable 29 gauge needle. Designed for use with all U-40 insulins, all 3 sizes of PetTest U-40 syringes feature ½ unit markings for accurate measurement and delivery of any dosage size. The shorter 5/16” needle length also minimizes the risk of a painful injection into the muscle. For larger dogs with thicker skin, we now offer a 30 gauge syringe with a 1/2” needle.

Key Features:

• 31G x 5/16” for comfort and less pain 
• ½ Unit Markings for Precise Measurements
• Fine, Sharp, Extra-Lubricated Needles
• Tri-Bevel Tip for Greater Comfort
• Extra Wide Finger Grips
• Protective Needle and Plunger Caps
• High Quality Surgical-Grade Stee