Chub StubClean. Simple. Comfortable. Key pinch. Chubby stubby solid steel rod ends challenge the precise strength of your thumb index finger squeeze. Great for training and competition. Dimensions: 5 8" diameter by 5 8" height By default, all stubs come with the insert attachment (instead of standard loop) for open top style loading pins (sold separately) to reinforce the intended lift (straight with minimal tilt). Stub ends come only in raw steel finish to