Bombers Bits Eggbutt Elliptical 38 | Sweet Iron Blue BitFeatures The Eggbutt cheekpiece prevents pinching of the lips and give a slightly more solid feel against the side of the face. It also prevents the bit being pulled through the mouth. The release is slower and also introduces some poll pressure. The Elliptical is a double jointed bit, with a lozenge in the middle. The Elliptical link in the centre is 38mm which is slightly smaller than the standard Elliptical link. This takes some of the pressure off