Unused follow focus gear set for the US-made Fillow Focusgear Sigma 24-70mm f2.8 DG OS. ★ Features Made of hard plastic (3D printed), unlike rubber, it doesn't slip. Rare item not available in Japan. Imported, and usually costs around 5000 yen each, so it's a bargain. Convenient when using the lens for video production. ★ Caution During installation, burrs from the 3D printer may scratch the lens, so install at your own discretion. It can be quite tight. Please follow if you liked it.