Sturdy ABS construction: made from strong ABS material to resist outdoor wear and handling, providing reliable durability for repeated use in the field. Fast, nofuss setup: hangs directly on your bowstring or on an arrow for immediate alignment checks — no tools or complicated steps required. Improves accuracy and consistency: ensures nock positioning every time, helping you tune your bow and mount sights with predictable, repeatable results. Dualaxis alignment: checks both vertical and horizontal positions so you can confirm nock and sight alignment and keep shots on target. How this solves common problems Eliminates guesswork when setting nocking points and adjusting sights, reducing setup time and inconsistent shooting caused by misalignment. Durable ABS construction prevents damage from outdoor use so alignment tools remain accurate over time. Quick setup makes it practical to verify alignment during range sessions or just before hunting or competition. Key attributes Function: bubble level for string and arrow alignment, nock positioning aid, sight alignment support. Compatibility: designed to hang on a bowstring or on an arrow for straightforward checks. Material: durable ABS for outdoor durability and dependable performance. Performance: promotes repeatable, accurate nock placement and reliable vertical/horizontal alignment. Use scenarios Bow tuning: verify nock position and sight alignment while setting up or adjusting your bow for consistent groupings. Sight installation or adjustment: confirm horizontal and vertical alignment during sight mounting to avoid parallax and misalignment issues. Preshoot checks in the field: perform a quick alignment check on your bowstring or an arrow before a hunt or match to ensure everything remains correctly positioned. Professional, practical, and built to last — a straightforward alignment tool for precise nock and sight positioning without complicated setup.