Description:1. To help the focusing ring from the ring to the ring on the lens.2. The focusing wrench is suitable for the manual lens such as for Pentax, for Forenda.3. Made of plastic material, durable and stable.4. Universal. Mini size, easy to install and convenient to use.Instructions for use:Step 1, control the lens focusing (or aperture size) by sensing the relative angle (position) of the wrench gear point during use;Step 2, familiar with this feeling, you can complete the focusing (dimming circle) without looking at the screen and eyepiece. Specifications:Color: blackMaterial: plasticSize(approx.): universal, fit for manual lenses such as for Pentax, for Forenda Package Included:2Pcs * Lens Focusing Wrench Note:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 0.5-2cm differences due to manual measurement.