Easton 5mm Match Grade Aluminum Half Outs #1 6 pk.Easton 5mm Match Grade Aluminum Half Outs #1 6 pk. Design: Two piece collar and post adds durability; Alignment: Molded alignment ring for flawless shaft fitment; Performance: Increases impact protection and front end strength; Feature: Patent pending sleeved design; Compatibility: Designed for 5mm micro diameter arrows; Weight Options: Available in 55 and 75 grain weights; Sizes: Offered in nine sizes for full compatibility with Easton 5mm shafts;