The Nockturnal Lighted Nock Green 3 Pack Universal Fit is designed for versatility and reliability. This product features a super strong clear Polycarbonate material that ensures durability and clarity. The universal fit design allows it to be used with various arrow types, including those with X nocks and larger. Adapter sleeves are included for GT, S, and H nock sizes, making it a convenient option for archers. Fast shipping ensures you can get started with your new lighted nock quickly. With its clear and strong design, this product is perfect for those who want a reliable and easy-to-use lighted nock.Key Benefits and Features: Material: Super strong clear Polycarbonate Universal fit: Fits all arrows using X nock and larger Adapter sleeves: For GT, S, and H nocks