Check the listing for details. Ultraview UV button Custom Thumb Button Made By Outdoor Assassin. Condition: New with tags. Listed at 16.00 USD. Outdoor Assassin is proud to offer another AMERICAN made product!These 3/4" round x 1" longThumb Buttons are 3D printed. You will receive 1 Button/Knob with your choice of Color and Knurl pattern. Colors include: Black, Orange, Red, and Flo-green. Knurl Patterns include: Diamond Knurl and Spiral Knurl. Please refer to pictures for colors and knurl patterns. Release in Picture (Ultraview UV Button shown) is example of what your release could look like and is not included. Our products are American Made! This Product is only guaranteed to fit the Ultraview UV Button Whats Included: (1) Thumb release Knob/Button of your choice(1) 4-40 x 3/8" Stainless Bolt installed (to tighten down) If you have any questions feel free to ask!