The EASTON 4MM 8-32 ALUMINUM HALF OUT SIZE 340/400 12 PK. is a must-have accessory for any serious archer. This precision-machined, aircraft aluminum insert is designed to fit Easton 4MM hunting shafts and provide a precise two-point interface that increases strength. The non-reflective black anodize finish ensures stealthy performance in the field. With a weight of just 50 grains, this half-out insert won't weigh you down. Whether you're on a budget or just looking for a reliable option, this affordable accessory is perfect for any archer. And with fast shipping, you'll be ready to hit the range in no time.Product Features and Specifications: Weight: 50 grains Material: Aircraft aluminum Finish: Non-reflective black anodize Thread size: 8-32 Shaft compatibility: Easton 4MM hunting shafts