Ballista Stainless Steel Penetrator Insert Pack of 12. Pack of 12 easy to use. Discover the high-quality Stainless Steel Penetrator Insert an essential component for archery enthusiasts. This durable and precisely designed insert is a must-have for anyone looking to enhance their archery equipment. Each pack contains 12 inserts ensuring that you have enough to last through many sessions. These inserts are specifically designed for arrow shaft ID 4.2mm making them a versatile choice for various arrow types. Made from robust stainless steel they offer excellent durability and performance. Ideal for both amateur and professional archers these inserts are a great addition to your archery accessories collection. Whether you're into target shooting or hunting these penetrator inserts will help improve your accuracy and the overall quality of your arrows. They are easy to install and compatible with standard tips and broadheads 7.6mm making them a convenient choice for archers. Enhance your archery experience with these top-notch arrow shaft adapters. Specifications for Ballista Stainless Steel Penetrator Insert - Pack of 12: Manufacturer: Ballista Color: Stainless Steel Fabric/Material: Stainless Steel Inner Diameter: 4.2 mm Weight: 120 grain Outer Diameter: 6 mm Package Contents: Ballista Stainless Steel Penetrator Insert - Pack of 12 Ballista BAL-PI-02: Stainless Steel Penetrator Insert Pack of 12