Tiny, ~8mm across. Has knurling on the edges.
Generic Soft Release Shutter Button
Nikon F4 - Camera – Kamerastore
4PCS Brass Camera Shutter Button Soft Release For Leica, Red/Black/Silver/Gold
No issues that will affect use.
Nikon AR-1 Soft Release
Same Color Soft Shutter Release Button (x2) – Foto&Tech
Camera Shutter Button (2 Pack/Red) Upscale and Delicate Soft Shutter Release Button : Electronics
VKO Camera Soft Release Shutter Button Cap Compatible with Sony ZV-1 ZV1 RX100M7 RX100M6 RX100M5 RX100M4 RX100M3 A6000 A6100 A6300 A6400 A7R A7S A7 Flat Surface Shutter Button Cameras Red(2 Pack) : : Electronics
Nikon Thin Neck Strap – Kamerastore
Generic Soft Release Shutter Button – Kamerastore
Good Compatibility: The soft release button is designed for Leica M10, M9, M8, M7, M6, MP, MA/ Fuji: X-pro 3, X-Pro 2, X-pro1, X100V, X100F, X100T,
Camera Shutter Button, Upscale and Delicate Soft Shutter Release Button (3 Pack)
Sinar Norma Accessory Standard – Kamerastore
Generic Soft Release Shutter Button – Kamerastore
Description, Specs, Notes, Product Highlights:, • Soft release button for cameras w/ threaded shutter button, • Simple installation on traditional
Fotodiox Soft Shutter Release Button - Anodized Aluminum 12mm Concave Button for Contax & Canon Cameras (Silver & Black)
Soft Shutter Release Button (2 Pack/Gold) high-end Pure Copper Camera Shutter Button : Electronics
Generic Soft Release Shutter Button – Kamerastore