Metal Camera Lens Ring For M42 Screw Mount Lens to For Olympus 4/3 Mount Camera

Lens: All Universal M42 Mount Lenses. 500 Silicone Rubber Feet Bumpons Clear Round Self Adhesive Anti Slip Circle E. 1 Lens mount adapter. Material: Anodized Aluminum. Flexible Soft Foam Door Handle Knob Cover Safety Protector Guard Non-Slip 135mm.