These are excellent quality, spring-loaded clips that grip the hook by the bend - in packs of 10.
Wheatley 9651 Aluminum Fly Box
Regal Material Clip – Bear's Den Fly Fishing Co.
Rod Clip+ Smith Creek Fly Fishing Tools and Gear
RIO'S FLY CLIPS are ultra-fast, easy connection clips that allow anglers to change flies with extreme ease and speed and prevents leaders and tippet sections getting too short. Simply tie the appropriate sized clip on to the end of your leader and either twist or clip on your fly. Multiple sizes of clip ensure that there is a clip size suitable for the majority of fly sizes.
Rio Fly Clips 3
RIO’S FLY CLIPS are ultra-fast, easy connection clips that allow anglers to change flies with extreme ease and speed, and prevents leaders and tippet
RIO Quick Change Fly Clips
Tippet Rings & Fly Clips – Sportinglife Turangi
RIO Twist Clips
Quick Change Fly Clips / Lure Snaps 10 per pack
DIY material clips, Global FlyFisher